We had a nice time in Mirko‘s Apartment. The area is really close to the centre and it‘s a young/student area. The apartment is in the old town in an old house, so the walls are thin and it can get a bit louder at the weekend, so you better take some earplugs - just in case.
Mirko is a really nice host and he was really flexible with our check-in time and gave us local tips.