I'm lowered 1" all around on Tein Flex Z, and although this camber doesn't look as pretty as Cusco or Voodoo, it does the job perfectly. I didn't do the alignment but I read that a lot of people love adjusting on SPC LCAs, compared to Cusco which is a huge PITA to adjust.
If you want something that's the best bang for buck buy the SPCs especially if you're not that low this will take care of you. I've read people track with these LCAs and haven't had any issues either I'd recommend.