Summary: Bought a nice i5-3570 CPU along with this mobo for my new build, but the i5-3570 is in the newer "Ivy Bridge" class of LGA1155 CPUs, not the older "Sandy Bridge" that this mobo and its BIOS 3.1 was designed for. The MSI website does provide a downloadable upgrade program which updates the BIOS to BIOS 7.0, which enables this mobo to handle the newer "Ivy Bridge" CPUs.
Summary: Bought this because my other motherboard was DOA (pci-express slot wansn't working) I read the features and it sounds good even better than the last mobo I thought was good. It's a full size which is nice the layout is pretty clean. Supports up to 32 gbs, but I'm pretty sure I'll hit 12 for my max. Hope to get i7 soon for this baby. Overral, it's awesome.
Summary: I am using this with a Intel Core I5-2500K. This board is FAST and easy to setup. I did have an issue because I wanted to use RAID. The BIOS needed to be upgraded so the Intel RAID function would work. That was a bit confusing but I was able to use a bootable USB thumb drive to accomplished this task. If you do not need RAID, the update was not necessary and every thing works great. After getting up and running, run the driver disk and select to install all.
Summary: Paired with an i5-2400S, works great. Bought it for 84 bucks, didn't do the rebate, SO CHEAP! Allows for turbo boost overclocking, so could probably get any second gen Sandy Bridge to max turbo freq. This is actually my first MSI mobo buy, previous motherboards I've had from MSI were given to me by friends and were usually broken so this was technically a leap of faith.