Concerns re: upgrading to an OWC Aura Pro SSD on my 2015 Macbook Pro 15" retina Looking to upgrade HD space on my 2015 MBP 15" — considering purchasing the OWC Aura Pro 1TB drive, but am quite wary of the many negative reviews I've seen surrounding it (overheating, battery issues, trouble booting).. 

Does anyone have any real positive experience with this drive upgrade, or any other recommendations? 

I'm honestly feeling most confident about purchasing a Samsung external SSD and velcroing it to the front of my machine. 

Any thoughts greatly appreciated :^)
You can pick up secondhand Apple OEM cards on sites like eBay very reasonably. I bought a 512Gb Apple card for my 2014 MBP, which has doubled both the original capacity and speed, (as it's a newer 4x PCI lane model).

Alternatively, there are adaptors that allow more generic M2 cards to be used.