Haruko's place was well placed and easy to get to with public transport. It was a good cheap option to finish our stay in Tokyo. Unfortunately the Pocket Wifi only lasts a few hours off charge so I would reccomend not relying on it. There is plenty of food within walking distance and the Seibu line connects to Ikebukuro which is great to explore; from there you can switch to a JR line for those with JR passes.