Stayed here for 5 nights, and it was really cozy. The team behind these apartments whom you will deal with are really nice. I made some changes to my booking, to reduce the number of nights as I wanted to stay out in Hakone, and Yoko (who helps Yuka) was really accommodating. Instructions on how to get there and around are super detailed as well, so you really can't get lost.

It's quite a decent sized place considering how small they usually are in Tokyo. The pictures show exactly how it is. I liked that there was a balcony as well.

The location was really convenient and as all my friends happen to live in Sasazuka and Setagaya, it was really easy to meet up. The apartment block is just a 4 min walk from Hatagaya Station, or if you want to catch a cab from Shinjuku Station, it's just about 5 - 8 min (1,000 yen).

Only thing is, if you're really sensitive to sound, you might not like the fact that the highway is just outside your window and there's constant traffic, but I was fine with it - I was either out most of the time, or slept like a log. Haha.