I've been running his RT800 for about a year and that was back when Tim Barth was doing all his tuning. I've been very happy with it. And yes, he is also a local to me as well.
I know a lot of people including a few friends that run his packages. Everyone has been happy AFIK.
Every company has their followers and haters. I personally have no affiliations/sponsorships with him or his company.