Sherwin Williams Ultra 7000 opinions?

[Repsol93]

What information I've read says the S/W Ultra 7000 is way better than their Dimension line of paint, but is it something that stacks up against PPG or DuPont? It's hard to have any opinion on paints unless you are spraying paint on a fairly regular basis and have the opportunity to really see how they stack up against one another.  Thanks for any thoughts that can be provided on this!

[69Z28-RS]

I have a friend restorer/painter who uses Sherwin Williams, but not sure which version he uses... and I was under the impression that he used it because the price may have been a little bit less and he said the results were just as good or better?

That said...  I prefer staying in one system and that for me is  PPG/Ditzler.