Expect what you see in the photos and more. The room was spacious for Japanese standard, with a king-sized futon on the tatami floor. It was my first time sleeping on the tatami, and although I was at first a bit taken aback by its unique woody smell, once my nose got used to it I felt comfortable sleeping on it. The shared spaces - toilet and shower - were neat and easy to use. The only thing is the fact that the neighboring building is a karaoke, and that you can hear faint singing voice through the wall at night. It is not loud at all, but if you are one of those people who need a complete dead silence to go to dreamland, then maybe this is important to you. (There are earplugs for use, though)
A pleasant surprise to me and my friend was a meeting with Takeshi's wife, Mayu, who is a sake sommelier. Over a couple of yummiest sakes, she gave us an Introduction to Sake 101, which, to me, was the highlight of staying in this place. Overall, it was a very fun experience, comfy stay. Thank you Mayu and Takeshi.