Got my bar tested overnight, they are perfect, thus the memory is actually very good and powerful. However, memory prices by deliberate reduction in production by the manufacturer, has been artificially driven up and (12/2012) have compared to my purchase practically doubled. I find that outrageous. So if you do not really need memory, I would refrain from purchasing date. Otherwise, I can recommend the memory.
Two side notes that XMP profile may need to be enabled in the BIOS in order to achieve the full performance (1600MHz) and who should use larger CPU cooler grab definitely for "Low Profile" option, since incorporation is impossible otherwise might. Use the LP latch itself and have no problems.