I stayed at Renato's apartment during my trip around Portugal with my girlfriend. The apartment was really clean, nice and cozy as described on airbnb. They have been really nice providing us clean towels and some informations about the city and the suburb.
The check-in was quite comfy and easy as the check-out and they were always prompt in replying. Unfortunately we didn't have the chance to meet them.
To sum up, it was a pretty good experience!