We have just returned from a week at the Rotana, followed by a week at Jumeirah Beach Hotel in Dubai.
We enjoyed the week at the Rotana, and couldn't fault the hotel, although as others have said, it is uncomfortable walking through the lobby when going to and returning to the beach, when there are so many smart business people there.
The main problem with this hotel is the view of the huge building site on the island opposite, which is very close to the hotel. During the week we were there, 24 hours a day, a crane dropped a huge piece of concrete to the ground once every 50 seconds, causing the hotel to actually shake!
There is also a lot of noise when at the pool, from the hotels airconditioning system, constantly droning in the background.
So, even though the hotel is lovely, until the building on the island is finished in a couple of years time, I wouldn't recommend visiting, and then when the building is finished, that is all you will see, hotels, towers and apartment blocks.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.