PCIe ssd's reliability, functionality with Logic and other pcie cards

Hello,

I was wondering what your experiences are with PCIe ssd's ? I'm thinking about installing 2 ssd's on a pcie card, one for the OS, one for the samples and sessions. How are your experiences with this set-up as far as reliability, stability with Logic X, combination with regular hard discs

in the slots and other cards, eg. Universal audio, all running in a 64 bit environment on Mountain lion.

I know it's a lot of stuff together, I just want to know if people are using any ( or all ) of these combinations and what the experiences are.

Any thoughts are welcome.

Thnx,

Peter