Nice flat for a short trip in Tokio. There is not so much privacy as the walls between the sleeping rooms are not completly closed, but this is clearly visible in the pictures of the flat.
The door is unlockable via a code, which is quite nice as you dont have to worry about loosing keys ;-) . We had problems with the portable wifi first and Y K helped us setting it up proberly very fast. If you plan a short trip to tokio, I can recommend this flat!