I thoroughly enjoyed my 3+ month stay at Isaac's. The in-unit laundry room was incredibly convenient, and the kitchen and bathroom were both great. The private entrance was also a huge plus. The location is also fantastic--it is a short walk to the Capitol Building, Supreme Court, metro, etc. Isaac was always available to answer messages. I would love to stay here again when I am back in D.C.
The only "downside" is that it is very easy to hear when people are upstairs. However, this noise is easy to drown out by simply turning on one of Isaac's fans (and moving it next to the bed). As a light sleeper, I found this solution to be effective.