This apartment has the most amazing location (note that there is no parking nearby, but you can park for free on the street along the Wall and then walk for 5 minutes or so). The apartment is really cool and unique! The host was very responsive and nice.
Check-in took a bit longer than promised (and we were quite tired and had to wait outside). I wish there was a self-entry option. Also, the place was unexpectedly cold and took a while to heat up. But the host was wonderful, and the unique experience of being in this part of the city totally made up for any minor inconveniences!