Custom Creator Expert Roller Coaster Building Bricks Toy Set 4619 Pieces

I thoroughly enjoyed build this model. Although it took much longer than expected, I'm not a professional, and this was the biggest set I've ever assembled. The mechanics initially felt a bit clumsy, but after added lubricant, they became smooth and efficient. However, one track section kept becoming loose. I resolved the issue by adding a few extra bricks for support, and it worked perfectly. Overall, it's an great build.

Better than expected! I love all of the mechanics!

There are a few small pieces missing...

This set is fantastic! What I love about it is its impressive construction and large size, as well as its functions so perfectly. Sometimes, the chain may slow down if a cart gets stuck, but aside from that, its design is incredibly ingenious - one twist leads directly to the coaster's top, and all the wheels work smoothly while in motion. Honestly, I'm amazed by this incredible set!

Very fun to build. Just what I was looking for.