It was okay, but I will not stay here again
Maybe we were just snake bit this trip, since most of the reviews on this hotel were better than average. But overall I would suggest to find somewhere else to stay.
First of all, I have stayed at other Omni hotels and they were awesome. I expected the same here. Not the case.
We booked our rooms through hotwire for 96.00 a night. Trip was for my husband, myself and our 3 yr old. I called ahead of time to make sure we could get a room with a king size bed and pull out couch for the little one. Girl on the phone said we were booked for a room with two double beds and she could not fulfill my request without charging extra. When we got there the beds were not even queen size. They were truley small double beds....very uncomfortable for 2 people. My husband went down and asked if we could get a king size bed room. They changed us for free to a king size room with a small (twin size) pull out couch. That was great. 
Next problem....no air conditioning. The first night our room had no air conditioning. That morning they promptly came and checked it out and then sometime in the day fixed it. The repair man said the manager would give us a call. Never got a call or any compensation for the broken a/c.
Third problem...elevator broken. We were on the 3rd floor and day 2 of our 4 day trip the elevator in our part of the hotel died. Hotel is divided by the parking garage and it took us forever to figure out how to get across and to our room. The elevator was still broke when we left and the stair wells have no air-conditioning. 
Fourth problem....the hair dryer in the room was horrible and pretty much over heated, started smoking and almost caught on fire. They again promptly brought up a new one.
As far as the rooms go, the hotel is very old and in a historical building. There was no air conditioning in the hall ways or the elevator. The beds were very comfortable, but the rooms were kind of dark and gloomy. We were on street side and the traffic noise was very loud on the 3rd floor. It was in a good location on the river walk. 
Overall, I would suggest to find somewhere else to stay. I am very disappointed that we received no compensation for the inconvience of no air conditioning and no elevator. There are too many hotels that out class this hotel on the river walk to stay here again.