Comfortable, older hotel in great location
My wife and I stayed here last week on a business trip and were satisfied with our stay. We had one of the larger suites which turned out to be perfect for picking up groceries and preparing small meals in our room's kitchen area (fridge, gas burners, toaster, sink, dishes, etc.). It's not a luxury hotel by any means, but has a nice comfortable vibe about it. 
We didn't use any of the other amenities, which to be honest didn't really jump out at you like at some other hotels. I couldn't even tell you if there was an exercise room or the like. For us, it was in and out of our room and that's about it. The staff was very friendly whenever we did interact with them. 
We are past residents of the area and so weren't interested in sight seeing, but if you were planning a trip to visit DC, I can imagine this hotel being a great home-base for keeping meal costs down while roaming around town to see some of the major sights. In this way, the lack of an included breakfast was a non-issue for us, since there is a gorgeous new Whole Foods grocery store just 3 blocks away with a littany of prepared foods. 
Having arrived at the hotel via rental car, it was a little annoying to find out that the valet parking was a bit expensive (35/day) considering the possibility of overnight street parking in the area. We were willing to pay for the convenience of it, and only used the car once per day before tucking it away for the night. The hangup you'd have if you were try and park your car yourself would be finding a spot for it on the street during the day for longer than 2 hours. Only permit holders can park on the street for longer than 2 hours before 8:30pm. Anyway, just be advised of the parking concerns, and if you garage it somewhere nearby expect to budget upwards of 25/day.