This is my first Cada set, I've always really wanted the lego monster truck 4x4, but everywhere I look it's at least $300. Found this set, it only cost $90, the shipping was extremely fast and free, it only took like 4 days, and the set is awesome! The build experience was just as good as any lego set, and the finished build works great. I will say, one of the black pieces holding the little gray ball at the control arm did crack. The control arm kept falling out of place and dangling because of the crack. I just replaced it with an extra piece from a Lego set. Also I can hear the clutch slipping often in high gear, especially when turning. Also one of the casings for the little led lights was broken when it arrived, i was able to super glue it and it's fine. The set is a little slow, even in high gear, but in low gear it can climb nearly anything! It has a LOT of torque. Overall I'm really happy with this set, I hope Cada keeps improving and especially keeps prices affordable