If we could give it 6 stars, we would
We arrived in August for our journey to the nation's capital. We booked two rooms in the Madison through Priceline and we were very happy to get each room at less than $100 a day. We had done our homework and knew that based on our selection, we would end up with the Madison when bidding. It looked good from pictures and reviews, but our experience exceeded all of that.
For starters, it's in a great location. Close to everything in DC by car, metro, cab or walking (for some things). It's also a nice neighborhood.
From the second we checked in through the moment we checked out, we received excellent service that you would expect from a Fairmont or Ritz. Everyone from the front desk to people that dropped off ice buckets in the room. 
Speaking of the room, we needed adjoining rooms and we got them. In fact, they upgraded one of the two into a one-bedroom suite, effectively giving us a 2-bedroom unit with a living room and kitchen table. The rooms were beautifully appointed, the materials were expensive, the bedding and furniture very comfortable and all were up-to-date and in great condition. 
We couldn't think of anything about our stay that could have been better.