Definitely not, it's 2 years old and memtest86+, prime95, iozone and iperf for 24 hours each. These are all independent soft errors. Furthermore, I'm continually running stuff that is doing gpg signing/verification and sha256 checksums in VMs... They would fail. Also, there would be kernel panics... I've had zero.

- App Store likely has a problem with storeaccountd / installer framework from the exception traces I've seen (debug menu on).

- HFS+ can corrupt itself irreparably (it's not ZFS). BTDTBTTS.

I see. Do you use VirtualBox for virtualization? I read that the kernel modules for VirtualBox were of dubious quality.

http://www.phoronix.com/scan.php?page=news_item&px=OTk5Mw

The HFS+ problems would not be related to VirtualBox. VirtualBox gets a bad press from the Linux kernel mods too.

Apple introduced a new virtualisation framework in Yosemite, hence the rereleases of the most widely used virtualization items (Parallels and Fusion).

Sounds post hoc. The virtualization products tend to be on regular, frequent release cycles. (I know one of the Fusion product manager.)

Hell no. Vmware.