I've used Flickr, as a paying subscriber, for over a decade. And I've been a happy subscriber, for two reasons. Firstly, Flickr displays photos beautifully with powerful organisational tools in the background. Secondly, because although Flickr hasn't done much with regards innovation for years and years, there's still no other photography sharing site that comes close to beating Flickr's product. Till now...
Flickr does a great job of Social. It does a less than stellar job of Personal. By that, I mean some of the automated functions found in both Google and Apple Photos. I'm rather embedded in the latter, being an iPhone and Mac user. I love checking out the Memories tab in Apple Photos and either looking through a trip from a few years ago, or watching the video they have created from the album.
Apple Photos has also got plenty of organisational tools, presents photo albums even more beautifully than Flickr and completely wipes the floor with Flickr when it comes to photo editing. I've been working on transferring my photo collection, year by year, over to Apple Photos. Flickr needs to get working on catching up to the competition. It still wins as far as social sharing goes - one of Apple's weak points. But I am beginning to find that the ability to display my photo collection to the entire world is less important to me than it once was.