I am very glad about the decision to staying in Yoshihito's hostel! The hostel is very tidy and cozy, it is located in about 15 min walking from the Tokyo main station, but the place is very quiet. Yoshihito speaks a very good English, so the check-in went absolutely smoothly, and later he gave me a few recommendations about what to visit in Tokyo. I would stay at Yoshihito's place again if I come to Tokyo and can only recommend this accommodation!
P.S.: don't forget to check out the roof terrace on the 6th floor, it has its charm:)