This is a really nice place that I can only recommend! It's very clean, private and easy to find, and 春樹 is very friendly and easy to communicate with. It's also close to Otsuka Station which is really handy as the JR Yamanote line goes directly to Shinjuku, Shibuya and Nippori (from where you get the train to the airport) - so it's very easy to get around. The airbnb itself is so comfortable and has a nice atmosphere, and I would definitely come back next time visiting Tokyo.