I would rate Maaco as "fair" based on my own experience. They didn't do a great job of masking, but the large areas looked good.
Some ideas (assuming this car is not to be entered in car shows--you just want to get it looking better for a few more years):
-- Are you sure it needs new paint? Polishing compound can brighten up an old paint job pretty well. Yes, you'll be removing paint, but that's not a problem if you are considering repainting it anyway.
-- Things are a LOT easier if you don't change the vehicle's color. That avoids re-painting the edges of the doors and the door sills, under the hood, etc.
-- You can save a lot of money (and probably end up with a better job) if you are willing to remove parts, do any needed Bondo work, and do the masking yourself. Spraying the car takes relatively little time for the shop.
-- Sometimes you can work a deal with a local shop. If they are spraying another car the same color (or will give you a call when they are), it saves them having to clean out the guns, etc to spray two cars in a row the same color.