Sebastian's place is easy to reach via public transport, once you get the hang of the trams!
The apartment is clean, quiet and safe and the room itself is light, spacious and comfortable.
Nearby food outlets are relatively limited so if you arrive late (like we did) you may wish to consider taking some food with you or ordering pizza.
Sebastian was away for the duration of our stay so we never met him but he stayed in touch throughout and we had no problems on arrival or departure.