I try to stay at Marriott brand hotels when I travel so I decided to give the Tysons Marriott a try. Being a premier member, they treat you right. The 15th floor lounge has great service and the food was tasty. The room was clean and I found plenty of parking (parking wasn't bad at $6.00). The biggest issue is getting into the hotel from Rte 7. Once you figure that out, it's smooth sailing.
I would stay here again.