This house is perfect for large groups like ours - we have 10+ adults/kids staying there. We are all coffee addicts, so have been visiting Kiyosumi Shirakawa every time we came to Tokyo in the past few years. So staying here is perfect for our group - we strolled to nearby coffee shops for breakfast and afternoon coffee; Allpress, Arise, Blue Bottle, Sunday Zoo, etc. We love it!
For the house itself, the location is convenient - just an easy 5-min walk from the nearby subway station. The communication with the host is great and timely; the check-in instructions are clear and simple to follow. The 1st floor is the kitchen/bar/public area, where we gathered every night for late-night snacks and sake/beer while chatting. The rooms are all with double beds - comfy for 2; also there's a sink and a hanging bar (for clothes) in every room, which is very convenient. The rooms facing main road could be noisy from traffic outside - we sent those sleepyheads in our group to those rooms, so it was alright. But I don't think they are suitable for people not easy to fall asleep. The linens provided are up to par; I would suggest bringing your owns. The nearby sento (public bath) is convenient and quite an experience for foreigners I believe. We saw quite a few sumo wrestlers bathing there every night we went there. Overall a great place to stay in Tokyo. I would recommend it and for sure will come back. :)