I stayed at Sascha's apartment for a long weekend with 5 friends..
I can't fault their hosting or the beautiful apartment.
We were quite late in arriving due to issues on the trains but Rob, who met us at the apartment, was totally sound and helpful. He showed us around, gave some recomendations and then left us to it.
The apartment itself is amazing, the photos don't do it justice.. We spent almost all of Sunday without leaving the place because it's so relaxing and a perfect to hang out with friends. The place has been so carefully considered, the aspect from each seat you sit in has been thought out and it was a pleasure spending time in a space like this.
All in all, nice guys, great comms, awesome venue.