We had a great stay at Koichi's place. The apartment is exactly as described. It is small but very clean and with a shared bathroom that is also consistently very clean. The building seemed very safe, and the wifi was adequate for our needs. The neighborhood is great. The couch does fold down to sleep a third person, but I'd recommend the apartment for maximum 2 people sharing the bed, which is quite comfy, and not sleeping on the couch. Overall, It is a great place to sleep and use as a base to explore the city and Koichi is very responsive and attentive.