Pros: XMP set these at 2133 MHz, no issues.
Cons: large sticks may be awkward to install on smaller motherboard.
These were the saving grace for me being able to O.C. my rig, after two consecutive memory kits turned up defective. First memory kit from Patriot was rated 2133 MHz, but XMP wouldn't recognize it. At 2133, programs crashed left and right, had to clock it down to 1600 to get any degree of stability.
Then I bought this and XMP recognized it like a charm. Now running at 2133 MHz with 16GB of ram, and I can finally get the most out of OC'ing my 3770k! Great investment.