I dont know about where you live, but around here, Omni is about 1/2 to 1/3 the price of the same PPG product. I have sprayed mass quantities of both, and I cannot see ANY difference in the Omni product. I have heard rumors in my area of the Omni just being re-labeled PPG, but I find that hard to believe. However, it DOES look and work just as well as the regular PPG paints. The colors are as vibrant, the clear smells the same, looks the same, hardens the same....it seems to be nearly the same as PPG.
The 'hopper
The 'hopper