We visited there when staying at another hotel to check it out for a future trip. The rooms are all unique in old whashington historical decore, and there is good access to the subway, which is what is really important in D.C., the Metro is great. Nice restaraunt and Bar area, roms seemed large and the staff was great. We told them we were
DVC members and they were very accomidating in showing us rooms. There is a healthclub at a separate location that you have access to if you'd like to swim, etc. We didn't see that, but weren't too thrilled about walking somewhere else in DC to go swimming, but the up side is that it is available.
With all that said, I guess it depends on your vacation style as to whether it is a good deal. If you'd like to use up some points, go for it. For us, I think we'd go ahead and pay for a hotel in closer proximity to the Mall and with swimming facilities on property. There are plenty of Hotels around D.C. and I'm sure there are good rates available. Thew Jefferson was a little removed compared with other Downtown Hotels. You may like a hotel next to the train station, the mall there is really nice and it's a great proximity to subway and otherthings throughout the area. I'd recommend going there for the evening bus tour of all the monuments. Nice busses take you to monuments you might not otherwise see, and in the evening they are all lit up. Well worth the ticket price, there are a couple of companies that offer the tours. The roosevelt memorial, the National Cathedral, the Jefferson Memorial, Iwo Jima Marine memorial, Embassy row, Georgetown, some of them we wouldn't have gotten around to see if it weren't for the bus.
It would be nice to be in walking distance from some of the sights you'll want to see for us, so we would probably choose a closer hotel to downtown. But we wouldn't rule it out, it is an option for us, and was a high quality quaint establishment with it's own historic feel, and what seemed to be very good service.
Hope that helps.