Very pleased with this fist major step up from fisher price for our 4 yr old, the design of any of these is great. They are really a world leader on these. The instructions were smart. We were trying to be hasty but soon saw how smart the pieces were packed and in what order to unpack. It will take you time, about 2 hours, mostly me building it using some of my tools. The fit and finish is precise, just wonder if the side decals will stay stuck to over the course of time. The spares was smart of them again, we had one defective screw break and were pleased to find the spare!