Great place just a minute or so away from Shibuya crossing, off a street with lots of bars and restaurants that are open late. The place is located in a nice building that also hosts a jazz bar. Place was clean and the description was accurate. The wifi was fast and the host also provided free bottled water. Help from the host was also available in the same building (I think they have an office in the building).
Just be aware, the area (and parts of Shibuya in general) might not be the most kid-friendly place late at night. There are love hotels nearby as well as some non-PG places. However, as with almost all of tokyo, it is quite safe.