A person who is not very computer-savvy needs to store 130GB of photos. The key parameters are:
an non-negligible probability that the company selling the storage will be existing, and the data accessible, for at least five years
data should be considered safe once uploaded
reasonable terms of service: google drive reserving the right to literally do anything they want with their user's data is not acceptable; the possibility that the CIA might look at those pictures is not considered a threat
easy to use from Windows, preferably as a drive
no nerve-wracking limitations ("cannot upload 10GB/day" or "files 500MB" etc.) that serve no purpose other than pushing the user to the next-higher price plan
some upgrade plan: there's currently 10-30GB of new photos per year, with a tendency to increase, which might bust a 150GB limit next January
ability to somehow sort the pictures: currently they are sorted into folders, but something alike (tags) would be just as good, if easy enough to apply
of course, the pricing is important (although there's a reason this is the last bullet; reasonable data safety is considered more important)
Nice to have, but not necessary features would be:
additional features related to photos (thumbnail generation, album sharing etc.)
access from web and other platforms than Windows (smart phones)
Let me stress this again: The person in need of that is able to copy pictures from the camera to the computer, can copy files in the explorer, and uses a web email service. That's about it, there's almost no understanding of what happens under the hood.
