Omar Muhyarwrote a review of GoPro Quik Key on August 8, 2018
Familiarity: I've used it several times
I purchased the Lightning version, so I could use it on my iPad with GoPro's iOS app. It works a lot faster for transferring data than Wi-Fi, which is the primary reason I purchased it. Can't really comment on anything else, besides it being really convenient to use, especially when your wireless internet connection is slow to nonexistent in rural areas.