Easy to assemble and I like that the scratching post attachment can be placed on the leg of my choosing! The rug on the bottom level also makes for a wonderful scratching surface. The hole to enter the orb up top is about 3 feet off the ground - my young cat has no issue getting up there, but an older cat or one not as agile may need a little boost, or a different cat tree all together. I can imagine use by a bigger cat (mine is under 8 pounds) could raise concerns for toppling it over while jumping up and down, just something to consider. It fits in nicely with the rest of my apartment decor, by no means resembling the eyesore that is a traditional cat tree.