The problem was that the callbox doesn't actually connect wit the host, and so twice I had to stand outside the building trying to get in for 20 minutes. The host seemed surprised by this and was not particularly interested in helping me. this meant that I didn't feel confident leaving the place, for fear that i wouldn't be able to get back in. sorry, i can't recommend this place, nor the host—who was, in the end, disrespectful and borderline dishonest with me.