I had International in Romulus do a pair of fenders and a door for my RR and wasn't real happy with the results.
The fenders had a couple spots the e-coat didn't cover because of an air bubble or something but that was no big deal.

My door however is another story. After they stripped it and they e-coated it the door looked Good. After the bodywork was Done about 3 months later the door seam on the bottom is starting to expand. Electrolisis is the term I think they call it but now my door is JUNK.
There is no way to stop the seam from expanding because they didn't get the chemicals rinsed out good enough it will continue to expand.
They did offer to redo the strip and e-coat but all the paint and materials was not covered.
I am Not Happy with this as the door was an excellent original, no rust, no damage door.
Now I have to do another door and hope we can get the metallic paint to match the car.

I will just do it the old fashion way for now on.
David