From my own experience build quality isn't great - it's never going to be up to Toyota standards on a hand built car.
But there is so much expertise out in the ether such that any problem can be resolved, and again from my own experience, once fixed they stay fixed. So if you do get any issues, don't despair, get it fixed and never, ever accept "they all do that sir". Very soon you will have a fully sorted Mog and any issues that you may have had will simply be a memory as you enjoy the wonderful car and the even better community.
