Never Again
We rented the Presidential Suite for a convention in August 2012. We had problems from the outset.
The hotel refused to give us an extra blanket (a first for me). There are no ice machines (you have to ask the staff for ice). The "free Internet" was broken for the entire duration of our stay (4 days). There is no coffee maker in the room (and this was one of the nicest rooms in the hotel--you would think they could put one in there).
The bellhop was tipped generously by my friend, and then when he wasn't looking, tried to get a tip from me moments later. The service in the bar was awful (bartender was out smoking in the alley while we waited for drinks). The hotel de-activated our carkeys at midnight on our final night. We couldn't get into the room when we got back at 12:30am. No explanation there, just attitude.
Twice I went down to get the continental breakfast at 9:30am only to find all the pastries gone, and the coffee maker empty. The hotel made no effort to replace the food.
The elevators are old and slow (not a big issue, but it just adds to the problems I already encountered)
When I brought up some of these issues at checkout, there was no apology from the staff, only attitude. Stay at the Omni if you want good service and avoid this place.