I bought this as a STEM project for my daughter. She loved it! It was pretty simple to put together and we took our time to really read over the instruction sheet so we put it together properly. It took us about half an hour to assemble it. We put a battery in and turned it on. I am not a huge fan of spiders and this looks like a creepy robotic spider from a SCI-FI movie as it crawls across the floor. We also engineered some ramps and obstacles for the spider to crawl over. My daughter really enjoys it and I have already ordered a second kit for her to send to a friend for a birthday gift. This is a creepy fun STEM toy.