I enjoyed my stay at Miwako's place, the room was nice and the host was friendly and helpful. I will probably stay here again next time I visit Tokyo.
The room is spacious and contains a TV, toaster oven, microwave, and kettle, but no fridge. The bed is a traditional japanese futon. The house is accessed by a digital lock with a pin number, but there is no lock on the internal door to the room in the house which may be an issue for some.
The location is very close to the large Hikarigaoka Park which is beautiful in spring and autumn in particular. There are three train lines each about 10-15 minutes walk from the house. The Toubu Toujou line and Yuurakuchou subway line, with Narimasu Station and Chikatetsu-Narimasu Station being the closest stations on those lines respectively. The Toubu Toujou line ends at Ikebukuro, while the Yuurakuchou line stops at Ikebukuro and continues on. They both take approximately 20-25 minutes to Ikebukuro. You can also walk through Hikarigaoka Park to access Hikarigaoka Station on the Toei Ooedo subway line.
The only issue I had with this stay was locating the house at check-in. I initially followed the map marker given by Airbnb, however I was led to the wrong location and had to contact the host to get the correct address.