Satoshi's place is very small and cute, an old style Japanese home. It is very comfortable to be there and the amenities work well. As with all houses built quite some time ago, the walls are thin and I imagine it may get cold in the winter but there are 3 good air conditioning/heating units in the house. A note for tall visitors: some entry ways are low so be careful when you go in and out of them! The stairs are steep too so be careful if you have young children or struggle to go up/down them.
We did have a huge problem checking in, in that the door was jammed so it took us over 3 hours to get in. We contacted the owner and he initially gave us some advice to get in but once he knew that wasn't working he sent someone to take a look, as well as a locksmith and he himself came to help as well. We had 2 small children with us so he let us sit in his van and even went to go get us food and drinks while we waited. The experience wasn't ideal but I appreciate everything the owner did to help us. Hopefully this door will be replaced soon as the owner mentioned that he would be looking to do so.
You'll get to meet neighbours who live nearby, all of whom are very friendly so make sure to say hello! The place is around 5-10 min walk to Sky Tree. Once you get to the station you'll be able to get to a lot of touristy places quite easily (Asakusa, Ginza, Shibuya etc).