We had a lovely time in Peter's apartment, which is very cosy, stylish, clean and well equipped. It's in a relatively quiet street in a busy area. We actually came by car and parked it in front of the house for a few days, which was not too expensive (partly for free in the weekend). We picked up some bikes in the street and rented them through some bike sharing scheme/app, which was perfect. The apartment being so centrally located, you can also walk places easily.
Walking the stairs was no problem at all. All in all, can highly recommend.