Great location, easy to go around Taipei city at this site. 5 mins walk to ZhongShan MRT station. There are lot of shops and stores and all kinds of restaurants just downstair around the corner. Very convenient to find everything.
Yasu is easy to communicate with, and respond quickly.
The room is clean and organized. equipped with elevator, so you don't need to worry about carrying big suitcases upstairs.
To sum, I would highly recommend Yasu's apartment while staying in Taipei city.