We had an amazing stay! The apartment is big enough to accomodate 3 persons if one of them does not mind sleeping on a futon (which is at least full-size). It was very clean and we had some coffee, tea and sweets waiting for us. The toilet and bathtub/sink where in separate rooms which is kind of nice.
John & Ceca have a nice system for collecting dropping the keys so you can check-in and out with ease.
All in all a superb experience.