Pros: fast and stable memory when the settings are all right. This is great memory when you get it set right!

Cons: None that are OCZ's fault. Just technology issues, this is new tech, there isn't a lot of flexibility in settings, and some motherboards don't plug and play. Be prepared to do your homework and don't be afraid to set your values in bios properly.

Overall Review: Pay attention to the settings, and the advice with one stick on Vista64 until ALL updates are in. This is not OCZ fault that they are at the mercy of the motherboard and OS manufacturers. Update your bios right away with any 790i board, 1600Mhz is only stable on the latest bios, I got that much right. If you are buying 8GB (2 sets of 2) for a 790i board hold off until someone has viable settings for your motherboard, still working with OCZ support for memory and EVGA support for the motherboard. OCZ support has been EXTREMELY helpful, I have 4Gb running and validated all settings every way, every slot on the motherboard, so everything is working, just not at 8GB - yet. If someone has the settings post them, or give them to OCZ support to help someone else. If we get this working, I'll post the 8gb solution at OCZ forums (avoid any nVidia forums if you want/need 8gb settings - they will ridicule you for trying 8gb - OCZ will try to help you).