Super easy to put together. My kitty loves to lay in the hammock, she loves feeling suspended, she always use to lay on the fabric inside our box spring and the hammock gives her the same effect. It also comes up to about couch cushion height so she can be near us when we are on the couch. 
The Plush toy is perfect for her to bat and get her claws into, she loves to play with it while she is laying down, or run up to it and hit it.
She uses the scratching sides sometimes but I haven' seen her use it too often. I haven't seen her use the Grooming arch at all, she just walks around it, but I think it's a cool feature to have in case she changes her mind.
All in all I love how versatile it is and that it looks cute in our home.