Trying to write a balanced review but unfortunately I only have positive things to say! Jessy is the perfect host; when we arrived our daughter was ill, and jessy offered to take us to a pharmacy to get the problem sorted. She also gave us a lot of recommendations of things to see and do in Berlin. It was really useful to have her local knowledge when looking for places to eat and things to do. She definitely went beyond what you'd expect of a host.
The apartment is much nicer than the photos would suggest. We were really pleasantly surprised when we arrived. Its really homely, very well thought out, really well maintained, and very, very cosy in the evenings. We could have stayed in a local 5 star hotel that wouldn't have been as good as this. Bedrooms are at the back of the apartment, so very quiet, which was really good as my other half is a bad sleeper.
Jessy was very attentive, but not intrusive, making sure our whole stay was enjoyable. She was very thoughtful, making sure we had everything we needed, without us having to ask. We've stayed in many 5 star hotels around the world, but Jessy's thoughtfulness probably deserves 6 stars. Jessy please open a hotel chain!