Pieces are very small, but when completed, it is amazing. So cool. I have bought several from the BRXLZ collection. The secret is to take a picture of the instructions and zoom in to follow the steps. After that secret, building is a breeze.
I got four levels into building it before I discovered that I'd either lost a piece or it was never included, so now it's just trash. I should have held out for Legos.