MAACO is a purely franchise operation, with MAACO corporate providing marketing services and bulk purchase supplies to the individually owned franchise shops, and perhaps some rudimentary direction/training--I.e. the quality of their work is completely determined by the standards of the franchise owner and the people he/she hire to actually do the work.
Over the years I have seen some very good work done by MAACO shops, a lot of nice to "not bad for the price" work, and some OMG/WTF/LOL downright crap.
Preparation is the key to any paint job, do as much of it as you can yourself--they will generally do an OK to downright shoddy job of masking, sanding, etc. Do not expect them to remove things that can and should (light housings, scoops like our hood scoops, custom fuel doors, etc) be removed prior to shooting the car.
Also they will not lift and support rubber trim strips with string so that the paint goes under them, they will a particularly poor job of masking badges. Make it very clear right up front that you will not pay them if the wheels, tires, wheel wells or engine have over-spray on them (they will not unless specifically told seal around the hood when they shoot the paint). Same goes true for the radiator /condenser coil--they will shoot right through the bumper painting those in the process...