as a Prime member I decided to use it for photos, only uploaded 600 meg of videos. I have 150,000 photos there and it runs in the background.
One thing I noticed is that it doesn't grab CR3's from the 90D, but it does get the CR2's
another thing I keep forgetting to do is to turn off the sync when I download the 1000 pics I shoot in some outings where I am going to delete most of them. It backs them all up, I don't even notice it.
I keep my main backup on 3 sets of 4 TB drives, Amazon is just another way to save them.
I tested pulling a photo back down at full size and got the full CR2 back with no problems so it works.

