Kentaro and Kyoko's place was a joy to stay at during our stay in Roppongi Hills. It was conveniently close to 1 Oak and other great nightlife spots as well as restaurants. It's a short walk from Roppongi crossing as well.
Kentaro was very responsive and helpful during our stay. The place was clean and a real fun place to hang out in general. I'd totally recommend this place to anyone looking for home base in Tokyo during their visit.