the build calls for repetition of sections which becomes boring after a while. The directions, especially for blue parts are very difficult to discern as you need to count holes. I found one part partially mutilated and a few small parts missing. I was able to source from other builds I have done. From past experience with Mould King, their customer service does not exist. Due to the missing pieces, lack of support and price variations, I have requested a refund and return. "Customer service" so far wants to make a price adjustment instead of refunding as required by Amazon. Beware! They have agreed to accept the return and sent me a label.