Maaco shops are individually owned. Their "bread and butter" is the cheapo 500 dollar paint job. That said, some may also have the ability to do frame off work. Like any other business some will be merely mediocre, some suck, some are excellent. The franchise concept allows them to purchase materials and advertising at lower cost. I felt the same way while I was shopping for a place to paint my car. No way in Hell! A buddy of mine kept pushing me to check a particular shop out and I finally went by just to shut him up. The owner knew vettes. Educated me on the different paint possibilities, and quality of finish work. He went over my car frmo nose to tail before giving an estimate. Something no one else did. The result:
First Place-Best Mild Custom-Houston Texas Corvette Expo
Shop around, do your homework, ignore the name-check the shop-ASK QUESTIONS.
Good Luck