I'm looking to replace a drive with unfixable SMART errors, so I've asked my local repair shop about trying to install a WD Blue 500GB SSD on my Mac Mini (late 2012, OS 10.11.6, but building a Sierra bootable flash drive for the reformat/reinstall) -- and they were rather firm in saying that trying to install anything other than an Apple SSD is likely to lead to problems, including a much shorter life for the drive, and that putting an SSD in a machine that didn't ship with one is also inadvisable. They also insisted that installing a hybrid drive would run into similar problems (though their explanation for why that should be doesn't quite jibe with what little I know about how hybrid drives are supposed to work).
Frankly, very little of what they're saying really jibes with what I'm seeing in various forums, so I need a second opinion as to whether or not what they're saying holds up -- is what I want to do reasonably do-able? I'm seeing a lot of success stories from 2013 or so, but I'm wondering about the long term as well....