Hirotaka's place is located right in the bustling area of Shibuya, a few blocks away from Shibuya scramble crossing. The listing was just as described, and everything was very clean and well-maintained. Beds were very cozy and bathroom was supplied with great products. There is a jazz club/bar downstairs that plays music until late-night, although that wasn't a problem for us since we stayed out late as well.
Hirotaka was very responsive to messages, and even came over to fix a faulty drain while we were out. His office is also located in the same building so it is very easy to get in touch. He and his team are all very kind, and also held our luggage for a few hours after check-out. I definitely plan to stay here again next time I visit Tokyo!