Great place, very clean and modern, we had a view of the skytreea and it was in walkable distance. Tony is a great host whi responds very quickly, the nearest subway station is not part if the subway system of tokyo so you have to pay extra.
The place is perfect for 2 people, for 3 it's a bit cramped especially if you have large luggage.
All in all the place was amazing and we would recommend it for you