We were a group of 5 italian students on an interrail.
The apartment is very modern and big. (Just the kitchen is small). It is even more close to the city centre than it appears on the map. It is also very clean.
The area is very quite. Every tourist-attraction can be reached walking but there is also a tram stop very close to the apt.
Michael is great. Always ready and fast answering ours email.
He arranged a minivan station-apt. for us. (Unfortunately it did not come to pick us up for the return and we had to take a taxi. But no problem! There is taxi parking there.)