I signed up after your previous post, so I've been on there for nearly a week also.
It is a different format. It's more of a twitter-type experience, with very small amounts of content. it it also much more geared towards a mobile experience.
So, Steemit for posting photos and stories and articles and discussion pieces.
Sola for posting pics and short insights, witty remarks etc. I'm going to try uploading holiday pics from y road trip over the Christmas break and see how that goes.
I don't think Sola is a competitor for Steemit, as they serve different purposes. I think it makes sense to be on both platforms.
I think this is just the start of a number of places where you get paid in crypto for uploading your photos and interacting with others.
A whole new way to earn a living. Freedom is nearly within sight ;-)