Yui’s home was exactly as described. It was very clean and had everything we needed. It’s just two metro stops away from Shinjuku Station and the neighborhood is also quiet but with a lot of little pubs and restaurants.
Check-in was super simple and check out as well. Yui provided a check-in guide with images to find his place which is only a couple minutes away from Hatagaya station.
I heartily recommend Yui's place!