I would give 4/5 in total.
Good things:
+ Very comfy, exactly as advertised
+ Fast internet
+ Everything is working
+ Space is very good for 2 people
+ 4K TV, lots of charging options, practical room, separate toilet and bathroom
+ Communication and instructions were clear
+ Keyless door
+ Quiet neighborhood
Could've been better:
- Wouldn't recommend for 3 or 4 people, would be small
- Checkin was confusing and a bit troublesome: internet was poor during the internet call with the reception and communication was hard to understand
- A bit far from city. It's okay if you only stop by the hotel once a day (25~ mins from Tokyo Central via Tozai metro line), but not comfortable if you want to stop multiple times.
- Found trash from previous guests under the bed
- Found lots of hair and body hair on the beds, sheets, on the floor. Wasn't very pleasant