My family and I stayed at the Residence Inn Arlington Courthouse in March 2013. We couldn't have been happier. The amenities were excellent- clean, well appointed, comfortable, modern, functional. There is a pool where my kids and husband had a lot of fun, as well as a fitness room which my husband used a couple of times. The beds were very comfortable- we all got a good night's sleep. Breakfast was excellent too- there was everything you could possibly want: eggs, sausages, house fries, various cereals, waffles, fruit, yogurt, juices, etc- a feast. The service at the front desk was exemplary too. They were even handing out freshly baked (and I mean still warm) oatmeal cookies to the kids in the afternoon. I have never been to a hotel where they did that. The hotel has its own garage- a big plus. Only caveat was you had to pay for it extra (I would have thought the garage fees would be included in the price of the room)- it was $15/day. The hotel itself was within short walking distance of a Metro stop and we were able to go to downtown DC in about 20 minutes (I think it is located 6-7 stops away from the Smithsonian museum stops). All in all, wonderful experience at the Residence Inn and would definitely come back again. Highly recommended!