Have stayed at all inclusive hotels before, but never in Cancun or Mexico. While all your tips are included in these type vacations, we still gave tips to our waiters, bartenders, maids, etc. The staff at the Omni Cancun Hotel & Villas are excellent. A couple of dollars here and there goes a long way for these extremely hard-working people. For example, each time we came into the dining room (there was always about 10 or more of us), we were basically waited on hand and foot. The food was outstanding, and they even prepared a large catch of fish we had from a deep sea trip while there; done for a very nominal fee. Going back in 2013.

We just returned home from our third trip to the Omni Hotel in Cancun. This hotel just keep getting better. The staff is very friendly and very helpful, they take care of everything from the moment you arrive. After being there before it was nice to be welcomed back. the hotel is very clean and well kept. the shows in the evening are fun and we always get a good meal with choices of where to eat. I'm sure we will be back next year. THANK YOU OMNI !

We have stayed at the Omni Hotel in Cancun a number of times, as recently as in February 2013. The hotel is very nice and could have a five star rating if it did not have to be compared to other hotels such as Ritz Carlton. etc. The rooms are spacious with comfortable beds and nice bath rooms. make sure you get a room withe balcony and ocean view. The view from the balcony is breath taking. The staff is very friendly and helpful. The entire hotel is immaculately clean and the staff constantly cleans the grounds and the common areas.

Cons: Difficult to get an ocean view room. The all inclusive rate is very expensive if one does not drink alcohol or eat a lot. In the past the restaurants in the hotel allowed guests order individual items from the menu and pay for that item. This is not allowed any longer. A hamburger can now cost as much as $20. A dinner can cost up to $50 or you can buy the all inclusive for $90 a day for a minimum of 3 days. The management is trying to persuade the guests to purchase the all inclusive plan during their stay, There is no other disadvantage.

I will stay here again if I can reserve a room facing Gulf of Mexico.

We visited the Omni in Feb for a long needed getaway. I was a little concerned after pouring over the Trip Advisor Reviews, but we both ended up loving it.
THE GOOD: Awesome facilities, awesome location, very easy access to bus system to get to attractions (ie Coco Bongo, Senior Frogs, etc). Great staff that goes way out of their way to serve you. We were there during the superbowl and they set up one of the conference rooms with balloons and a whole buffet of "american food" with servers bringing drinks. Great food with multiple options. Great pools, swim up bars. Beach is right there (with awesome swim up jacuzzi bar- my favorite). AquaWorld close 10min walk for scuba excursions. Wasnt very crowded, easy to find pool chairs.
THE "BAD": entertainment is a little lame, but honestly if you need them to entertain you all the time at an all inclusive resort in Cancun then you have bigger problems...no real nightlife, there is on bar that is open till 1am, no nightclub. There was an unspoken expectation for tips, which could be a little awkward, but not a big deal (we basically didnt tip the whole time). This is picky, but there was nothing I would consider a "hot tub"-->warm tub.
RESTAURANTS: there is one buffet that open breakfast/lunch/dinner-->always great options. As far as fine dining you get two nights, we loved indonesian. Viva Mexico pool bar great tacos/burritos/burgers. Poolside sushi bar was more than I expected for mexican sushi.
Excursions: recommend Coco Bongo, scuba (wreck dive), XPLOR, Chichen Itza, parasailing