Bests & Worsts Reviews from Amazon

I installed this in my wife's MacBook Pro (mid 2012; non-retina; MacBookPro 9,2) . Very easy upgrade. No issues. Memory instantaneously recognized, no need for 'option command r p'. At the same time, I upgraded the HDD to Samsung 850 EVO 500GB (http://www.amazon.com/Samsung-2-5-Inch-Internal-MZ-75E500B-AM/dp/B00OBRE5UE/ref=cm_cr_pr_product_top). With these 2 upgrades (and a fresh OS X 10.10 install) the computer is better than the day we bought it. Very highly recommended for Mac users. Another note: even though Apple claims 8GB being maximum amount of memory for this Mac, it can actually take 16 GB. I entertained that idea for a moment, but at this point 16 GB is a bit pricey. Very happy with the upgrade.