Check-in was a snap, and the front desk was friendly and helpful with our queries. The room was clean, quiet, and comfortable; a great value for a city location with Metro access a short walk away. Housekeeping was quiet and efficient, and our room was kept in excellent shape for our stay.
Breakfast at the cafe was decent; the menu was average breakfast fare at big-city prices, but the service was quite friendly and the food was good.
Parking is pricey, but that's the nature of the city. $30/day for the ability to go in/out daily seemed a little above average, especially when there's a parking tax added on top of that.
WiFi - which appears to be something controlled by Marriott corporate - was chancy. Of two phones and two tablets that we brought with us, we were only able to connect one of each, and no one seemed to be able to advise us how to bypass the problems.
There is also an exercise room that we didn't use, a pool that obviously wasn't open in December, and an open balcony that was also too cold to enjoy.