Communications with Lai was fantastic - he makes sure to address all queries and responds really quickly.
Room location was great as it is located close to ikebukuro station. the station is a major station which serves several train lines, and also has a JR pass office there (which is a plus if you are intending to book seats on the shinkansen). There is also a family mart just across the road and the limo bus stop to/ from the airport is very close by.
However, do note that the room provides only the bare basics, which is ok only if you intend to go out shopping all day & not spend too much time in the room.