I have the setup, except for the upper rear control arms. I love it. I am not familiar with other brands, but it is a whole new, sportier feeling. Again, Im not knocking others. Body roll is gone and launches seem firm. Then there is that solid feeling when you hit a curve. Its a great street setup as well!
I think I remember reading someplace that you can buy Hotchkis cheaper. I think they sell direct but at higher prices, so they dont undercut thier retailers.