Parallels? How are people's experiences with it?

Hi there.

So I fancy a Windows install on my MBP to play a few Windows-only games (nothing massive).

I could obviously create a Windows partition but I just went through the long process of installing a dual SSD+HDD optibay setup and can't be bothered with any more partitioning etc...

Does paralells work as a VM and so doesn't run well and is only suitable for non-intensive applications?

Or does run Windows (and the apps inside it) well?

Cheers in advance, here's a kitten with a sombrero...