Great place to stay. Since it's on the Fukutoshin Line, you can easily get to Shinjuku and Shibuya with no transfer. Grocery store is really close. It's also the cleanest sharehouse I've ever stayed in. I was really surprised at how clean the bathrooms and showers were.
My one complaint would be that you have to turn the fridge off at night. That makes having a fridge much less useful. Still a great stay overall!