Stayed in Michael mezzanine for just over a week. The location is amazing. 10/15 minutes and you are in Berlin city centre. The room is quite cool, really hipster kind of space. The bed is very comfortable and the atmosphere is very relaxed. You won’t feel like you are intruding on anybodies home. You might get woken up early if someone is going to work early and your luggage is in the hallway so you will have to trust the other guests, which I had no problem doing. The other guests were lovely. The apartment is located less than 2 mins from the railway station which goes directly to Alexandra Platz. I would highly recommend this place for a few days of being a tourist in Berlin