I'm satisfied with Dropbox, because it does what it advertises: it syncs files between computers without getting in the way. I would be very worried if it weren't stagnant in terms of functionality, because change for change's sake is the path to bloated crapware.

If you want your photos on all devices, Dropbox does this for you. If you want software to look at the photos that is a different task and should be accomplished by a different piece of software.