A friend of mine won a raffle put on by the Washington State Lottery that included airfare, tickets to an NFL Playoff Game, and two nights at the Hyatt Regency Washington on Capitol Hill.
We stayed at the hotel Saturday-Monday in January. The hotel overall was fairly quiet. Great location near the Capitol; but otherwise you will need to plan on a bit of a walk to anything.
On the weekend, prepare to travel a good distance for meals as there are no restaurants besides in the hotel and the hotel across the street. The food in the Hyatt is decent and moderate price, so not a big deal to eat there; but just realize you are eating in the hotel lobby. They have a nice shop that sells all sorts of snacks, water, drinks and even has a small cafe for coffee and pastries. The staff was great, always helpful and cheerful. We enjoyed talking with the doorman especially.