Paul's place was very convenient to Ueno station (both Keisei Ueno and JR Ueno station) and basically across the street from Ameyoko. There are nearby groceries and convenience stores, as well as a lot of places to eat. Size-wise, it was reasonably comfortable for our family of five, but I think it's really set up best for 3-4 people.
Paul was very easy to communicate with and work with, and even allowed us a later check-out to work with our flight schedule and allow us time to do a bit more in the morning. This was a great value and he was a great host.