I've heard it's pretty rubbish so far.
I mean it didn't work for me, as i explained, but, its a lot better and quicker for manual tweaking than using the BIOS and CoreCycler.
And i know my CPU is fine with those very high negative curves, the software seems to think so too, all its doing is setting a value and tress testing it, it does that until it finds errors, what it doesn't do is monitor the CPU during idle states, and that's where i have problems, not during stress testing.