I stayed there for four nights, and I'll definitely go there again if I ever go to Tokyo.
First of all, location is not bad, if you take metro, it only takes 270 yen and 10mins to get to Shinjuku, ueno, imperial palace and etc, there is a bus right from the front to go to akihabara.
Rooms are clean, facilities are in good condition, you can have free coffee whenever you wanna.
Mayu San is an insane expert of Japanese sake, she told me tons of information that I never heard of before about sake.
Takeshi San is definitely a guy of a lot of fun, I didn't see him much during my stay, but I really can feel that he's full of interesting ideas.
I enjoyed my stay there, and happy to talk to different people as well, also in terms of money, it's absolutely worthy as well.