We had a great stay at Kotaro's place it is really well located for transport and has great shops, restaurants and entertainment in the local area. It's on a JR line so if you have a JR pass it's easy to get around on that. The flat has everything you might need including phone chargers and how to report an illness at the hospital. It doesn't have a washer but that wasn't a problem. Highly recommended for seeing Tokyo and getting to and from the airport.