I will preface my comment here by saying that my number 1 favorite kit is the AMT 50 CHEVY PICK UP.
Now that you know that, I can tell you that most of my disappointment with kits have been, in general, all AMT kits . . . the early Fords and some 50s Chevys.
I don't know, and I ain't blaming those kits . . . maybe it's been all my fault in that I have very little patience with ill-fitting kits . . .