It was easy to put together and my cats seem to like it. The only 2 issues I have are that it's pretty wobbly so I had to wedge it between the wall and a dresser, and there's really not enough space between the tube and the wall if you put the tree in a corner. My cats kept jumping up to go in the tube and then having to back out because there's not enough room for them to go through.  I ended up taking it off. It's a good cat tree for the price, though.