Bests & Worsts Reviews from Amazon

This item is good conceptually but it needs better information. First, my iMac running 10.12 could not find the PhotoStick icon. When it finally came up I hit "GO", per the instructions, and the program ran and ran and ran and found more duplicate files than actual files. And then it froze. So, I restarted the process and after forty minutes it told me that I had more pictures than space on the 128 GB Photostick. When it started copying the files it copied all of the jpegs from Print Explosion and none of my photos. Then it froze again. The instructions should tell you to identify files to exclude before trying to back up.