Ever heard of Bamboo-House?

I'm searching a room for me and my boyfriend.
We saw this website http://www.bamboo-house.com/index.php

But due the lack of review of it we're not sure if this website is a scam or not.
Has anyone lived in their house?

It's not a scam.
I stayed here for a few months in 2015, in Fujimi House located in Nippori. The staff was very helpful and friendly, no complaints. It might be easier if you speak a bit of Japanese, though.
The property itself was showing its age, with a bit of a mold issue in the bathroom, but there were no serious problems. It's a good choice if you want to experience an older, charming, homey side of Tokyo and don't mind a bit of wear. Also, the location was very convenient: a quick walk to Nippori station on the Yamanote line, a 7-11, drugstore, 100yen shop, and small grocery store. There are some good restaurants and bakeries around there, too.
So basically, as long as you don't have your heart set on a very modern apartment, it's a solid choice. I would probably stay with them again.

Seen them before but never stayed with them, Have used in the past sakura house, oakhouse but now just use Airbnb.