My husband, two children (18 and 21) and I just had a wonderful stay in Stefan's apartment.
He is a great host - we were greeted promptly at the apartment by a very friendly host, and Stefan was very quick to provide information and communicate throughout the whole process.
The apartment is in a great neighbourhood, close to restaurants, cafes, shopping and public transport. It was spotlessly clean, with plenty of towels, etc. and kitted out to a high spec. (e.g., hairdryers, coffee maker, TVs in every room, great WIFI).
Stefan was also very flexible about a couple special requests we had, which really added to our enjoyable stay.
I highly recommend the apartment.