Perfect place to kick-back
I stayed at ZaZa Dallas for the weekend in between business trips. Overall experience was excellent.
Staff are extremely friendly and accommodating at all levels and couldn't do enough to assist any request.
Rooms are spacious and well equipped. They hide the ironing boards under the beds (just to let you know).
The bar is excellent and actually not as expensive as you'd think for this type of hotel. In the evenings the pool comes to life and has a DJ. It's more of a nightclub. 
Now, this place gets busy.
Don't expect to waltz down to the pool mid-morning and get a lounger. The pool is quite small for the size of the hotel and a slight added problem is people reserving (i.e. paying) for loungers and seats. Just make sure you get there early enough. As a suggestion, perhaps they shouldn't let non-residents/guests into the pool area unless signed in by guests. On the Saturday afternoon the pool was getting over-run by over-excited guys.
But, all things considered, this is a very nice hotel and a very comfortable stay. Hat's off to Alex the Manager who truly understands the meaning of customer service.