I have
ASUS A7V
Athlon 1.2 GHz
768 MB PC133
Delta1010
Matrox G450
IBM 75GXP
IBM 60GXP
I didn't have any compatibility problems.
I haven't messed with the reverb too much. Sounds at least as good as any plugin I've heard. Audiophile types seem to think it is much better than any native plugins. I just love how it lessens the CPU load and makes my life so much easier.