Summary: Great memory. Crucial is gold. I've bought their memory several times in the past and this time, like the other times, there has been no problem whatsoever. Completely compatible, as their Memory Finder said.
Summary: I needed extra RAM and Crucial has a large advertising presence, and a good reputation. I wasn't into blazing fast RAM for gaming, but needed additional RAM for photo editing and management, and movie editing. The price was right and the RAM was available. It does the job for which it was intended and for which I purchased it.
Summary: I had a mid-2010 iMac, and wanted a performance boost. I ordered this RAM to speed match the existing RAM. It worked like a charm, right from the first power-on: very stable, and never intermittent. Definitely recommended.
Summary: Installed in an older PC that is now being used as a HTPC. Is on for hours at a time streaming and playing lots of HD video content. Have had zero problems with the RAM, and as noted above RAM was installed months ago.