I was between ordering 32Gb Crucial or OWC RAM for my new iMAC. I opted for the OWC based on the positive reviews and the cost being a few dollars less than Crucial.
The product arrived very quickly, was well packaged and the RAM was a perfect fit.
I have yet to put the RAM through much more than normal use, but the speed of the iMAC went from very fast to noticeably faster.
I'd certainly purchase more OWC RAM based on my experience thus far with the product.