This is an incredible location, and a good value. I mean, you can find a cheaper place in Tokyo, but you really cannot beat this spot. It is so quiet because it's on a (very safe and well-lit) dead-end road. This means almost no cars, but a surprising amount of bicycles and people walking. This place is directly above (literally) Nogizaka station, and it is surrounded by amazing cafes, bakeries, coffee roasters, museums, and more.
The place itself is a bit small for two people. It's perfectly manageable, but when you want to hang out laundry you have to be very clever about where to do it - or you cannot close the bedroom door or go outside. But the bed is super comfortable and everything works. The kitchen is small but efficient. Same with the bathroom. Finally, the hosts are very responsive. I emailed to ask why there was no rice scoop (shamoji) for the beautiful new rice cooker, and I found a bag on my door handle the next day with a new shamoji inside. That's service. Do yourself a favor: spend a little extra and enjoy the quiet, comfy, super-convenient space here.