Awesome stay -- close to public transit (subway) and good restaurants (What a Treat was a personal favorite), clean, modern, and quiet! The secluded inner courtyard where the apartment is located ensures a restful vacation and privacy.
The only problem was the electronic apartment door lock, which wouldn't open for a while after check-in despite the fact that every other door lock in the building worked fine for us/according to instructions. We simply left the apartment unlocked -- there was no real danger given the fact that the main gate was always locked.