It was easy to put together by myself with a cordless drill on a low power setting. There were LOTS of leftover screws and such in the hardware bag. The printed instructions included good info that’s not in the assembly video, but it failed to mention anything at all about the smaller bracing pieces which was in the video. After unpacking everything, I sprayed the carpet runner with a bit of catnip and let them play around with it so they’d be a little familiar with its scent. I let them play in and around the base after assembly as well. Those two new things helped keep them busy while I worked on putting the wheel together. As soon as I got it finished, they were on it with no encouragement needed. The attached video is just 20 minutes after assembly. This guy is just 8 months old and he’s already a bit possessive of it. It’s sturdy, safe, a great size, a good value and performs flawlessly.