Terrific Location, just two small blocks from the White House
Previously, I wrote a review about this hotel. I was honest about the pros and cons.
Pros:
Terrific location
Friendly service
Chic rooms with modern fixtures
Cons:
took a long time to get our towels
did not receive a call back from the Ride Service
Noise that came from the rooftop club
There are three things that you must know about this hotel:
1.) They have the absolute best location. Two small blocks from the white house. Less than a mile away from the National Mall (Lincoln Memorial, Washington Monument, Smithsonian museums, etc). Also, surrounded by some of DC's best restaurants. TIP: ask for a room that faces 15th St.
2.) DC's hottest club sits on the roof of the W. On Friday and Saturday night, everyone is up on the roof. While all the club patrons are having a good time, unfortunately, for light sleepers like me, you may pay the price. TIP: Ask for a room far away from the elevators. 
3.) They will do anything to make you happy. I may have complained about how long it took to get my towels, but I want to mention the courteous staff member who very politely answered the phone. She probably asked me about 3 additional times "Is there anything else I can do for you" and that's the type of attitude that everyone has at this W. From the doorman who hailed a cab for us, the check in counter who didn't just check us in but also recommended some fun places to check out, and the kind manager who went above and beyond to making a customer happy.
It sucked I lost sleep. You live and you learn, so learn from my tips and ask for a quieter room. 
Also, more pro's:
hot water turns on very fast
OJ in J&G's steakhouse is freshly squeezed and darn good
Wi-fi was reliable. 
More tips:
If you use the whatever/whenever ride service, call in advance! The moment you check in try to book your appointment.
Go green, save water, and earn some points.
In the morning they serve coffee in the lobby. We were there in December, they served cider in the PM. Plus when we checked in they gave us some champagne.
Cheers to W for making your customers happy.