I booked the place for me and two of my friends.
It is really close to the center of Amsterdam (2 stations).
Thomas welcomed is really good. He provide us with some tips.
The place was great but I don't think it is good for 3 if you want to spend more than 1 night. In fact the third one will sleep on the coach's leaving room and there is no shutters so you have the sun on the morning...
Moreover, the third bed was not ready at our arrival so we had to do it.
To finish I could said that the place is really great but there is some improvement to do.