The lovely tree house was just as described, and perfect for my needs. It is definitely a cozy (read: small) spot, and best for one person. The bed is comfortable, the neighborhood is quiet - what more does one need?
There is no kitchen area or fridge, so consider that when planning food. Plenty of closet and shelf space, though, and the bathroom is a nice size.
I would absolutely stay here again, and would recommend it to others.