After a month at Martin's flat, and can say that I really enjoyed my stay: this was a unique experience.
The flat is pub reconversion, decorated with a lot modern art sculptures and paintings that makes you feel a bit like if you had privatised a room in the Tate Modern Museum.
I only met Martin at my (late) check-in but I can say he has been really nice and helpful: he has always been prompt to respond when I had to contact him, and as a welcome bonus, he left a few beers for me in the fridge!
Thanks a lot for this stay. :-)