Rui is very nice and always answers immediately, he also gives many hints. The flat is cosy and very clean. The privacy is a bit lost due to the sliding doors. It is quite noisy from the outside, but you have great restaurants right outside the door. The camera is not so cool, you feel like you are staying with your parents and getting blamed when a buddy pulls an all nighter. However, it can be understandable with AirBnb.
Summary: good please to stay but too expensive.