This is a fantastic place to stay to explore Tokyo. The apartment is quite spacious for 2 and was very warm. Ryusei had many nice touches like some japanese snacks on the counter and in the fridge, local maps and manga. The location is great! We didn't need to use JR but it would be simple to take the underground one stop to Ueno and transfer to JR there which would only take 2 mins and wouldn't cost more than ¥170. There are lots of restaurants close by and convenience stores. It's pretty quiet at night so you shouldn't have any trouble sleeping. Would definitely recommend the late night ramen shop 2 mins down the road