Kuniyoshi's place is exactly as described. Simple apartment but comfy and clean with everything you would need. We only spent one night there but I would have been happy to stay for a week or two. Great value and sooo easy to get to the airport very early the next morning. Basically a two minute walk and then a train, no transfer needed!
Accessing the apartment is also a breeze with Kuniyoshi's very helpful instructions. One of the easiest and most flexible check-in/check-out situations I've had on Airbnb.