This is a great budget place to stay. The room is as described, a/c awesome, internet and portable wifi a life saver. The place is kept very clean and the toilet and shower are practically new.
The kitchen has everything you'd need to make a simple meals if required. It's close enough to a few stations that getting anywhere is easy.
Shops and restaurants are close by and a sento only 5 min walk which was perfect for soaking tired legs after a long day. Great place to sleep and rest while exploring Tokyo.