Clean, spacious room in an excellent neighbourhood - very peaceful and quiet despite being in the middle of Tokyo. The subway is a quick walk away, and if you don't mind walking further, popular destinations like Akihabara and Skytree are also reasonably walkable (~30 mins). The bathroom is fully equipped, I especially liked that I could heat the shower area, both for comfort and also to quickly dry my clothes after washing. The supermarket and convenience store just down the street made quick meals and snacks a no-brainer. The only downside I can think of is that despite the large windows, the room gets very little natural light.
I only stayed 5 nights, but this rental would be totally suitable for long-term living.