Mosquitoes, bats, mice, tarantulas, roaches, terrible lighting... all of those things would be acceptable if we hadn't been paying $90-120/night. And we had pre-paid for 10 days there.

I've stayed in Mexico dozens of times, from hammocks in grass-hut palapas to nice rooms with A/C. The Diamante K has the amenities of the former while charging for the latter.

To top it off, they really took advantage of the large group of us that were staying there for a wedding. We were paying $90/night for a double room (#15). It was in the back (no view of anything), and smelled like a rancid outhouse -- we called it the "poop cave" -- apparently there's a leaking sewage pipe behind the place. It was impossible to sleep at night from the smell alone, and when we complained we overheard one of the maids say (in spanish) that everyone complains about that room. After 3 nights there they finally transferred us to a much nicer room (#7 -- that's one of the nicest there).

The staff tried to say that it was something recent (blamed it on the rain), but we had the feeling that the problem with #15 has been ongoing for a while, and they keep renting it out when they can.

Just about all of the rooms have a problem with light. As I said, I've stayed in grass palapas on the beach before, but these are all dark-wood with small slits that let the light through. They end up being incredibly dark, and your eyes can't adjust because of the brightness between the slits, so you end up feeling around on the ground for your belongings. And when it rains, your stuff on the floor gets wet. They have a generator which runs from dusk until midnight, but they won't put more than 10watt bulbs in the fixtures (many of them red or blue), so they don't do much more than add ambiance, and you're still using a headlamp to find your stuff.

We had an especially tough time with the staff -- It could have been that the manager was on vacation at the time -- we noticed that the 2nd in charge changed from t-shirt and shorts to a nice dress when the manager came back, and we heard the manager yelling at the staff.

Among the list of issues we had:
- They were supposed to change our laundry and towels every day, but we observed the staff going into our room with clean folded sheets, but coming back out with the same clean folded sheets (not dirty ones). They just put our same dirty sheets back on the bed.
- We had no clean towels for 5-6 days at a time. One guest was promised a towel all week, but was constantly told they're at the laundry... never got one in the 10 days they were there!
- The food and drink service was INCREDIBLY slow (even by Mexican standards), and they refused to give change most of the time (forcing you to give them a big tip or order another drink). They also doubled the posted prices and refused to honor their "drink specials"... we're talking $5 cocktails here... US prices. We were 20-30 people with money to burn in our pockets, and would have eaten and drank much more often at their bar... but we ended up feeling so ripped off at every turn that we took our business elsewhere for most of the week.
- During a rain storm, about 4 of us ended up getting soaking wet mattresses because the rain came through the roof. They did nothing about this for 2 days for anyone. For one of our friends, they ended up tearing down the whole roof (leaving bug-filled thatch all over their belongings and nowhere to stay for a day).
- Their official 'lost and found' policy (were were told) was that they would keep things for 1 day, and then kept it. Lots of lost towels, lights, and other stuff...

We ended up feeling much less rested after a week there than I have on any other vacation. Sure -- we were drinking and out in the sun during the day -- but it never felt relaxing coming home... in fact we dreaded coming back every night because of the old nasty, lumpy mattresses and pillows, the hanging beds swing and that make it hard to sleep, the bugs, the low light, not enough blankets when it got cold, no hot water in the public showers... I could go on.

If I had been paying $30/night like you do in other places, I would have been OK with it -- that's par for the course... but $90-120/night?!?

What's odd is that some friends that stayed in the sister hotel (the Esmerelda K) had a much better experience, much better service, and paid the same or less.
We think they jacked up their prices when they found out that a whole wedding party would be staying there.

My advice -- if you get a room there for $50/night or less, maybe consider it (the beach is gorgeous), but make sure it's one of the ones facing the beach (and ABSOLUTELY don't stay in #15). And don't stay there for more than a day or two, and eat elsewhere. I'd check out some of the other places up or down the beach... I think there are much better deals in Tulum.

Get cabana #1. Its the best one for the price at this property. Ocean front, far from the bar, and you WILL need that ocean front breeze as there is no AC and the cabanas are little bake boxes.
The place is rustic but gorgeous, especially at night when its lit with candles and torches. If you've never stayed in a hostel or place with shared bathrooms you won't like it here. If you are willing to trade AC, TV and your own shower for a hanging, mosquito screened bed 40 feet from the ocean for $40 a night you will like it here.
Yes the VooDoo lady is in a bit of a tizzy all the time, but I got what I reserved and was happy with it. I overheard her quoting others rediculous prices so either book ahead or bargain.
The food was good, and priced the same as other resorts in the area which we ate at too. Beers were a few pesos cheaper elsewhere. We did have an odd experience with breakfast of French toast. It was just 4 slices of plain toast on the plate, when questioned the waiter insisted it was french toast, so we ordered a side of toast and did a comparison for him. he eventually just charged us for two sides of toast.

I recently spent four nights at the DiamanteK. First the good: the location is absolutely beautiful. It has its own private little beach and you can walk along the ocean in one direction for a couple of kilometers. I found the grounds to be so nice and well-kept. The mayan statuary, hammocks ,chairs and tiki lights all added to the great atmosphere. Contrary to the opinion of others on this site, I found the staff to be nice enough too The guys in the restaurant and bar were always attentive to us, Hilda at the desk was a sweetheart, and the male manager seemed like a good guy. There was woman in a managerial position (I think) who needs to get over herself...but we just avoided her no problem.

Now for the bad: The rooms are very, very dark and extremely hot. There are no ceiling fans. We had to sleep with the window and door wide open, which made me a bit uncomfortable. The mosquito netting was useless because it was just too hot to use it.

Having eaten there twice, I'd have to say that the food in the restaurant is really not that great. But the Mezzanine next door has wonderful Thai food - so walk over there.

Beware: not every unit has its own bathroom. There is a communal shower and toilets that serve the guests with no bathroom.

In summary, I'd have to say that I really enjoyed my stay at this hotel. Would I go back there? No. I'd find a cabana with more security and a ceiling fan.

the beach at this place is gorgeous and also some terraces they have around,but everything was dirty and the room was full of huge spiders,the tropical kind,one crept up my leg at night,and a lot of cockroaches runing around the floor and the beds,HORRIBLE.we had slept out on two hammocks because it was unbearable and next day hurried out this place.Not to recomend