We stayed at the Residence Inn on a recent trip down East coast USA and it was without a doubt the best value/quality hotel of the trip, the room was spacious and very well equipped, the complimentary breakfast was very good and the staff managed to cope very well with what looked like most of the hotel guests arriving within 15 minutes of each other for Sunday morning breakfast. The gym (which is shared with the adjacent hotel) was enormous and very well equipped, the pool was small but my kids were happy enough with it. All the hotel staff we spoke to were extremely friendly and helpful, we used our car for trips into DC so I can't comment on the hotel shuttle but they seemed to run fairly frequently. My only slight gripe would be the parking charges which I think are a bit high at $24 a day but we had a good deal on the rooms so I can't complain too much. Overall highly recommended on lots of levels.