I enjoyed my stay at Sofia's. The building is located in a great part of town - walkable to downtown, metro- and bus-accessible, and close to lots of great restaurants at Logan Circle. I even caught a comedy show at DC Improv which was only a 15 minute walk away.
I stayed in the master suite which offered its own huge private bathroom with a separate shower and large luxurious bathtub with jets. The building is absolutely charming with its old floors and lots of windows.
One thing I would like to note - if you are a light sleeper consider one of the rooms upstairs instead. The windows in this room face P street which gets busy and noisy, and the upstairs tenants can be heard walking in their space.
Overall, I had a positive experience and glad I got to explore this part of town.