Pros: Fast, stable, no errors during memtest check. Installed in Lenovo T420s, all 16GB recognized no problem.

Cons: Not a fault with the memory, but my laptop ignored the memory specs and is running the memory at slower settings than the memory's SPD ratings. This is a bios limitation with the laptop.

Overall Review: Got this on sale at around the same price as slower speed ram, so no heartbreak over the laptop not running it at full rated speed. Shipping was fast but the cheap shipping was USPS in a bubble envelope with no real protection and the envelope had been folded. Luckily the fold did not break the ram in half, but the plastic wrapping was pretty damaged right next to the ram stick. Half an inch difference in where it was folded and it would have destroyed the memory during shipping. The package was not marked "do not fold". If you don't want to risk an immediate RMA, I suggest not using the super saver shipping since the packaging has zero protection and folding an envelope is not exactly an unusual occurrence in the mail especially if the package is not marked do not fold.

Pros: I used this kit to replaced the factory memory in a Dell Latitude E6520 with the i7-2760 processor. A very nice upgrade; very fast and no issues I was able to get rid of the swap/page file, make a nice RAM drive and I think the graphics are quicker too since the system has more available memory to borrow from. This definitely was a noticeable improvement.

Cons: none

Pros: Ran the extended Apple Hardware Diagnostic (1+ hour) with no errors. Runs great in regular use.

Cons: None yet. We'll see if it lasts.

Overall Review: There are no Apple-guaranteed DDR3-1600 packages at the moment, so this was the next best thing. No compatibility problems so far.

Pros: Works like it should. G.Skill replaced the first set I bought after they stopped working properly. They didn't give me any issues replacing them.

Cons: Had to send the first one back to G.Skill directly, since it was past new eggs warranty policy. The con is that I had to pay the $20 for it to be shipped there.

Overall Review: It was nice to get my computer back up to where I wanted it but it just irritates me that I had to pay for the shipping on a defective part. I understand defects happen but for that extra $20 I would have purchased something nicer to begin with. I generally do like G.Skill products and wouldn't discourage anyone from buying their products.

Pros: Works flawlessly on my new "Late 2012" 13,2 imac.

Cons: None so far

Overall Review: Upgraded my mac from the standard 8GB that it shipped with to 32GB, saving a couple hundred dollars. Ran geekbench before and after, and had an 800 point increase. I also ran memtest for a couple passes, and there were no errors

Pros: 16 GB fits fine in T420 and T420s, no heat sinks and not too tall. Heat is average Runs at expected 1333 in T420s units (didn't check T420). Need stability over speed.

Cons: none.

Pros: Ran memory test for over an hour - all tests passed. Currently there is no 16 GB "approved" MacBook Pro memory but this works. Installed in a snap, fired right up.

Cons: None that I can say. Had it less than a day. Will report back if any issues.

Pros: Price was a big decider for me on this purchase, but I found I was able to maintain performance while observing my value orientation. My mobile workstation came with an irregular (1x4 GB and 1x2 GB) RAM allocation. I work a lot with full-sized and multiple Virtual Machines. So I need the RAM volume to enable my work environment. I've been using G.Skill RAM in my machines for years new, and find their products very stable, fast, and value oriented.

Cons: None Thus Far!