Very nice experience.
As per earlier reviews, go for the free parking in back - not a bad walk at all, with or without luggage. Went for nice walk to Memorial Park from the hotel, as recommended by the Concierge. Close to nice restaurants and Galleria shopping. Didn't use the pool or gym during the short stay but both looked very popular. The gym was very well equipped. The pool had a DJ in the afternoon, and the waterfalls made for a lovely place sit and have a drink. 
The pillows were very soft and fluffy and the bedding higher quality than average. Only complaint or two was in the bathroom and they were minor. The toilet paper holder kept falling off (Room 429, Omni!) and it was easy to hit your head on the vanity mirror coming out of the wall near the toilet (pushed it to the other side of the wall to avoid harm). 
Anyway, we enjoyed our stay and would easily go back and stay again, next visit to Houston.