We had a nice stay at this apartment. It's right in the center (good windows, you don't hear the noise from the street), so everything is within walking distance. And the supermarket downstairs is very convenient.
We slept like roses (bedrooms at the back of the apartment) and found everything we needed in the apartment (and only when we left we found out there were also bathrobes and slippers !).
A good shower is always important to us and also no complaints on that front.
Travelling from and to the airport is ridiculously easy and cheap, so no need for a car of you're only citytripping. We had to rent a car for a couple days and could park on a spot owned by the owners just around the corner.
Communication with John was easy. Recommended