Stayed three nights at the Hilton in Alexandria, as part of our road trip. The hotel was a nice place to stay; clean room, comfortable beds and at the top of King Street where all the action is. We got a great deal with internet, parking and breakfast included. The breakfast was very good, with plenty of selections, including omelets. I LOVED their banana-nut and fruit muffins! They had a lobby bar/lounge with reasonable prices and their restaurant menu looked nice (and reasonable) but we wanted to try different restaurants so we didn't eat at the hotel. Our room faced the Metro but it didn't interfere with our sleep; in fact, I don't even remember hearing it at night.
We visited Washington, DC while there, since it's just a hop, skip and jump away. We took the Metro to get there and then took a hop on and off bus tour once we got there, since touring DC involved SO MUCH walking; the places of interest are very far apart.
Alexandria is a pretty city and we would stay at the Hilton again if we got the same kind of good deal that we got this time.