This is a big hotel as you would expect in a major city. I was upgraded to a suite as a Gold member and being this Friday night looked like the hotel was near empty. Did not eat or drink at the hotel (the Hard Rock Cafe is close and fun) but the suite was very nice, the staff was extremely nice and all was good.

Stayed four nights during Atlanta Gift Show. Atlanta Police Dept were breaking into rooms arresting people for prostitution . Marriott Marquis Atlanta should be ashamed of working with police to set up their customers. I watched from across hotel concerned that when police barge into a room would the person in room starting shooting. Would someone be hit by stray bullet?
Shame on Marriott. Doesn't the Atlanta Police Department have better things to do.

If you're going to the Mart or need to be downtown, Stay Here. You have access to Marta, food court, and bars, plus you get points for staying, but do not use Priceline-They screwed up my reservation and charged me twice.

Stayed here 2/14-2/18. Hotel is not a reasonable walking distance to the convention center, especially for a woman walking at night or in the cold weather.
Also, when asking the concierge about how best to get around, it was advised to get a taxi. Other cheaper options were not even given, but O had to seek out by myself. Also, one taxidriver tried to price guage, since I didn't take his name, the front desk manager didn't really tale it seriously.
On the positive side, the service, rooms and food was all good.