A good experience at the Tyson's Marriott. My room was very clean and the staff was great in every way. I ate at the lobby bar and the food was quite good. The concierge lounge had a very good breakfast - salmon and eggs (eggs that weren't swimming in water - they were excellent). I do not like the Starbucks wait-10-minutes-a-cup coffee machines they've installed in some of the concierge lounges, but I guess they want to discourage coffee drinkers (its working).
In all a very good hotel, excellent staff, and a great location.