Yes, I don't have 70GB yet, but my Google Drive account currently has 100GB of allocated space in it. I can get up to 1TB If I want. I can access all of them from the gallery app on my phone ,and a web page on my desktop. I can print them via any number of services. Also if I use ChromeOS I have essentially filesystem native access to them.
With this setup, however, do you end up with local backups of the files? Whatever picture solution I choose, it's important that I have all the files local (because I still consider it a distinct possibility that Google will cancel my account someday ... accident or not).
No you don't which I count as a feature, but I understand the opposite side. I can export my photos locally, but already my photo collection is larger then the storage space on my phone, tablet or Chromebook so a syncing solution wouldn't help on those platforms.
