Recently i came across two issues:
a) As seen in the picture below, I'm running out of storage space in my Google Drive. This will soon force me to stop automatically uploading pictures from my phone(s).
b) I want to share family photos easily w/ all of my (and my wife's) devices.
After looking into various cloud providers, i found Amazon Drive's Prime Photos . For 70 Euro p.a. or an Amazon Prime subscription I get unlimited photo storage.