Without question the best feature of this apartment is its location. escape all the crowds and find yourself in a quiet residential/student area which is only 2 Metro stops from Nieuwmarkt, 3 from Centraal station and a 8 minute tram ride from the Museum area. Some good (and cheap) cafes within a 2 minutes walk, as well as a supermarket - really nothing could be better. We've been coming to Amsterdam for many years and have stayed in several different locations, but this is our favourite.
The apartment itself is well furnished and makes superb use of the space - way better than a hotel room (and you wouldn't find one at this price anyway). The owner couldn't have been more helpful, meeting us at the Metro and offering a service change of towels after 2 days (we declined). A little thank you gift from him at the end was a lovely touch. Not to mention the 2 televisions one of which is a large screen, an ipod dock and free internet access ... what else do you want?