We spent 2 nights in Ruben's appartment. It is very confortable and spacious for 4 people. Near to Diamant metro and with a bus stop to the city at 30s walk. If you want to return late there is a bus until 3am from the city. Perfect.
We tried the bike to return from the city once, it is not a good plan if you are not used to bike. The area is a little high.
Ruben is very thoughtful, a map was waiting for us and bottle of water. He is very reactive to messages and put a total trust in us. We had a really nice stay in his apartment.
Thanks again!