I know this is an old thread, but I'm sure there are many people like me looking to increase their MacBook Pro storage.
I bought my mid-2015 Retina MacBook Pro with 512 GB storage. This wasn't enough for me, and in December 2016 I purchased an OWC Auro 1TB SSD drive. Installation was a breeze, and at first I didn't really notice any issues with it.
After a few months though, my MBP fans started getting really loud, due to the SSD overheating. Even if there was no heavy graphics or gaming or processing load, my keyboard ran super hot, and fans full speed most of the time.
To test this, I switched back to the factory SSD, and even with more processing power being used, the fans stayed totally silent.
Switched back to the OWC Aura, but after a couple of months (right before the 1-year mark), the drive gave up on me and wouldn't boot anymore. A local Mac technician saved me by using diskwarrior to repair my disk, back up my files, and swap back to the factory drive.
I contacted OWC, and they replaced the drive (had to send it back to them first, because it was past the 30-day return mark).
Now, fast forward 6-7 months, and I had the same issues last week. Graceful shutdown one evening, next morning come to boot up, and I get the dreaded folder-with-a-question-mark icon, with my Mac not even seeing the SSD drive.
Back to the Mac technician, after some troubleshooting (drive wouldn't boot when in an external enclosure, but did end up booting when put inside another MacBook), was able to run an extra backup, and I'm back at the 512GB factory SSD, with no overheating issues, and much faster performance.
I'm about to contact OWC again, but I can't get a refund, and I'm not interested in trying the Aura again, it's just too much of a hassle.
I might give Transcend Jetdrive a try, but still skeptical, and don't know if it's worth the drop in performance (read/write speeds with the factory original are SO much faster).
One mac expert friend of mine recommended I try a m.2 to PCI-E adapter with a Samsung Evo 960, so I might try that.