That's a great alternative to the LEGO
That's a great alternative to the LEGO, yes, the pieces could be more precise, sometimes it's hard to install a specific piece, sometimes it's too loose. But this is a pure Technic, a hardcore that I would rate like 18+, not less. The set looks fantastic when it's finished, I would be glad to build newer models. I can recommend the LesDiy products, for this price, LEGO will be twice more expensive, so if you want something different, the confections that LEGO don't have, then LesDiy products worth to try.