I stayed in Min's place for 10 nights, the first one in a shared room and then in a private room. Min was very kind and responsive, I booked my stay in his place at the very last minute while I was waiting to board my flight to Tokyo. The directions to the place were very accurate and Min was there waiting for me to show me around. The room and the common areas are very clean and nice and the room was very spacious for Tokyo standards.
The only little down side is that there is only one shower for a shared apartment where then can be up to 20 people at full capacity. So you might have to queue for a few minutes to take a shower in the morning. However this has never been an issue during my stay and I never had to wait more than 10 minutes.
Min is a very friendly and nice person and he was also always available for a chat and a drink in the evening. I would recommend this place to anybody wanting to stay in a central location, in a comfortable room and for a fair price. I have previously been in other apartments and hotels in Tokyo and Min's place is definitely the best I have seen so far.