The stay at Marty's place has been great!
He was not at home in that weekend so he sent one of his friends to welcome us in.
Locking and unlocking the door of his apartment with an application was easy to do. The Apartment was like in the pictures and everything was clean.
It is located a bit far from the center, but with tram n.14 you can reach it easily (in 10 mins).
So I definitely recommend staying at Marty's.