I don't know about the Omni, but every PPG paint I have ever sprayed has been excellent. This one has to be a personal call. Every shop is different and every painter is different too. Some are into slapping out a job while others will put extra care into every step. If you see and like the guy's work, and you are comfortable with the price, hit it. I've seen some great $1000 jobs and terrible $4000 jobs. Negotiate. Trade for gun parts? Build him a nice $1500 AR-15 and call it a trade...