Sang is a nice guy who will always reply to the messages you send to him. I almost did not see him at all on my stay but he will answer to all my questions by message. The few momments I saw him in person, he was nice and worry about making my stay good. I was unlucky with the noisy neighboors so I could not sleep well because noises until 4:00am, but this does not seem to be the case of every night. In general my stay there was nice :) Also the place is close to the subway, busses, and shops :)