It just looks like it's a utility built to increase voltage while the CPU is under load, thus improving stability, and decreasing voltage when it is idling to reduce heat dissipation.
Seems similar to Cool 'n' Quiet.
In my opinion, I don't like software changing around my settings, especially without me knowing about it. I prefer to have one configuration that is set in stone, that way I don't have to worry about instability or heat.
Then again, I'm a control freak.
If you are overclocking, I strongly advise using any software which will adjust voltage and clock speed.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w