Went there with a couple of friends for 4 nights. We booked two rooms but the first night the hotel was overbooked, so we had to share one apartment with two sleeping on the couch. Seemed to happen more frequently. We did not get much of a compensation (apparently a better room, but not so sure about that)
Breakfast is basic. Rooms were clean and recently refurbished, but the terrace (ground floor) was facing some undergrowth, a dirt patch and walls. Overall o.k, but not great.

We (me, my wife, and 1,5 years old doughter) stayed at Aparthotel Diamant in the middle of June.
We booked it via hotels web page, since there was a special offer 15% off for booking in advance (30 days). We were looking for something more like an apartment but with all hotel's facilities, and AD had everything, what we were looking for.
Hotel was located close to the beach (10 minutes) and close to main street of the town with a lot of bars, restaurants and shops. There is no problem to park the car if you renting one (like we did).
We had a nice and recently remodeled apartment with living room and separate bedroom. It has a little kitchenette, with microwave, fridge, all nessesery equipment.
It was very useful since we have a little baby.
The bathroom was a little bit small and could have more shelves to put towels, etc.
Apartment was clean. There was a cleaning service everyday, but only to set beds and sweep floor. We did not need more.
There were two tv sets in the aparment but with no English channels, although they were listed on the card.
Our room faced a pool area. Over the first night it was very loud, because there was a live music show in the bar. I called reception and was offered a new room the next day, but the rest of our stay was not so loud.
We choosed halfboard option with breakfast and dinner at the hotel. Food was excellent! Maybe there wasn't to much choice, but everything was fresh and tasty. We could find something even for our baby.
Pool area was very nice and clean. We used it almost every afteroon. Pool has a baby section. There was a small playground around it, but the swing was not adapted to children less than 3 years old. It would be more usefull if the seats have had a back barrier.
Almost all guests are German: young, older. Therefore it is hard to talk in English at the hotel, but despite that, the staff makes this hotel very pleasent. All the receptionists, bartenders, maids, people working in the restaurant - everyone.
Special thanks to Mr Lopez from the restaurant. He was always smiling and played with our baby.
I fully recomend Aparthotel Diamant.