My family of 4 stayed for 8 nights/9 days and used the self-check-in/check-out so we never met Midori. We paid twice our normal budget because apparently it costs over $500/night for a spacious apartment with 3 beds. Thus, I went in with very high expectations.
The apartment is very conveniently located a short walk from the Okubo station and right upstairs from a My Basket market and blocks from Lawson's, 7-11, and Aeon Market. We enjoyed the strong AC since temperatures were in the high 20s C/low 80s F. The apartment is very spacious for Tokyo standards and we found the only significant noise is from the passing train (but we quickly grew accustomed to the noise and window rattling). We used all 3 beds (since my girls don't share beds well) and the sofa beds were quite firm (versus sagging lumpy sofa beds I've had in other rentals). Toothpaste, shampoo/conditioner, and shower gel were provided. Also, Midori was always very prompt to reply to messages and questions.
My two minor complaints are 1) it would have been nice to have had the second sofa bed set up as a bed when we arrived, since I noted we had 4 guests. Instead, I had to scramble to figure out how to transform it into a bed (it's not like the typical American sofa bed!) and look for sheets/pillows/blankets while completely exhausted after traveling for 16+ hours and 2) more English instructions would have been helpful (the manual had some English instructions for the microwave, washing machine--but wrong model as they must have purchased a new machine since they made the manual, water heater, and rice cooker but NOT for the Air conditioning remotes or the shower room ventilation system).
All in all, I would recommend renting this unit.