Pros: Large beds for Tokyo [double beds can actually have 2 sleep comfortably], Excellent location-10mins to Roppongi; 5mins to Nogizaka Metro station. Clean locality. FamilyMart nearby. Enough space for storage / luggage. Best stay in Tokyo so far.
We were 3 - members and found the place to be very spacious.
Cons: Only a Single WC and Single bathroom - tough for a large group. ; Not a lot of eat outs nearby - except for a Denny's