Rémy's apartment was just perfect for a 4 night stay with my two friends. It's pretty close to public transport stations and with Friedrichshain it's within one of the best quarters in Berlin.
The flat was super clean when we arrived and Remy actively contacted us so that there were no open questions. Also he leaves a two page note for all visitors explaining everything again and recommendations for some places around the neighbourhood.
The apartment even exceeded our expectations a bit - so would totally recommend this place to my friends!