NOT A PAINTER

what don't you guys like about self etch primer? Isn't it for tiny exposed bare metal spots before basecoat or sealer?
I have never had a small bare spot that needed it so have never used it?
I don't dislike self-etching primer; I have just never used it. I have always had really good luck with using a DTM epoxy primer on the bare metal. Then, filler work can be done directly on the epoxy primer. I guess a guy gets used to what works for him.