Most that I have seen built at other guitar forums all point to the same issues. Most of the neck tenon and mortise tend to not fit properly, nor have good alignment. If you have any wood working skills, this may not be an issue for you. You'll need to check everything before gluing the neck in place, especially the placement of the bridge and the angle of the neck coming off the body. If the angle is too steep, the bridge will sit way too high And if the angle is too shallow, the bridge will be too high when cranked all the way flush with the body. There are other minor flaws, but that is too be expected with a kit as inexpensive as some that I've seen advertised.