This was not my first tiny tree house, it was in fact my fifth. I enjoyed constructing it as usual however, there were two niggles.
Firstly, the parts were quite loose in their frames and tended to fall out before I was ready to use them.
Secondly, when assembling many of the parts, they were loose in their slots and I had to resort to glue to keep them in place.
I hope you find these comments helpful and constructive.