I have a S050900xxx and it works find for my Athlon XP system. The P150 on the otherhand is plagued with little issues. The PCI bays for instance dont allow cards to sit properly. Secondly, the paint comes off real easily. Thirdly, 4 of the shock cords have snapped causing my harddrives to be found at the bottom of the case. I like the non-noise, but really, this is a bit much to compromise with...
Shoulda gone Lian Li like my first case...