Stayed for one night this past week. I arrived at approx. 5pm and was able to check right in with no problem. Due to my Hilton Diamond status, I was upgraded to an executive room on the top floor. The rooms have been beautifully updated and I must honestly say, this is one of the nicer Hilton's I have come to stay in. I did eat dinner in the hotels restaurant, Hearth. The food was very tasty. I then spent some time at the lobby bar, where there were plenty of servers/bartenders that were friendly and willing to help you. The lobby is beautiful as well and the art features are striking as you first walk in.
Overall this was a solid stay and I truly felt appreciated for being a Diamond member, which some properties forget that it is the little things that make someone feel special. My only complaint(s) is that upon checking in, there were a few stray hairs in the bathroom, but nothing that I would have raised a big stink about; and the people at the front desk, while generally helpful and approachable, seemed to be so with a fake smile on their face. Almost like they were forcing themselves to provide good service, instead of it just coming naturally.
I will return, and in fact, already have reservations set up for when I am coming back to DC in a couple months!