The Room - everything that you could possibly need is available and more! We were able to do our laundry during the trip because a washing machine and dryer (inside the bath area) are free to use. The light has bluetooth speakers, Wifi speed is great and consistent, bed is comfortable with a cozy duvet.
The Location - Only a 5 minute walk to Sugamo station (yamanote line and toei mita), and around 3 mins to the nearest bus stop (direct line to Asakusa!) so it's very convenient!
The Host - Very responsive! They sent a PDF of English instructions on all the processes needed (pre-registration, checkin, checkout, trash segregation etc) and how to use the appliances and they're very helpful when you have questions or issues. We had an issue checking in (the code they sent was not accepted by the machine with our keys) but they were quick to respond and has a contingency plan for that specific scenario
Nearby establishments recommendations: Coffee syphon/Kono, Kamo&Negi, Menya Imamura