"I find it amusing that 45+ year olds are knocking a set targeted for 8-12 year olds for not being detailed. Go creator expert if you want high detail. My son is 7 and loves the set. The modular idea is great. I'd like to buy another of these kits to have the other designs along side the main one. It does stay together if you're not trying to pick it up and move it around a lot. if you do have problems with the modular parts staying connected then just replace the 1x4 2 knob pieces with 1x4 4 knob pieces and it will stay together just fine."