This cat tree is well worth the investment.  I have four cats and they all love it. It's very sturdy and plenty of scratching areas strategically placed throughout the cat tree.  The cats love to climb to the top and nap. The tree was VERY easy to assemble...I did it in about 20 minutes from start to finish (which wasn't fast enough for my kitten)...she was climbing on it before I had it together! No tools are needed, it comes with everything you need all packaged in a nylon pouch (great packaging). Additionally, it comes with an extra dangly ball toy too! 

The shipping was exceptional, ordered on Sunday and it was delivered on Wednesday!