D is the definition of a perfect host. Great communication from start to finish, extremely friendly and helpful. Even has his own blog detailing everything you need to know to enjoy your stay in Shimo, and in Tokyo as a whole. 5 stars for the host, no question.
The place itself is small, but no smaller than any standard studio in Tokyo. Upon arrival, the place was clean, stocked with "welcome" snacks and adult beverages, and filled with guides to help you plan your adventures. Very comfortable. And the view from the balcony isn't bad, either!
Shimokitazawa is a hip, vibrant neighborhood with tons of cool bars, restaurants, and shops. Highly recommend staying here if you want
to be close to the popular tourist neighborhoods, but want to stay somewhere a little more quaint and "local" feeling.
I can't recommend Shimo, and D's apartment, enough. Thank you, D!