Preferred the UI to that of canva when they started getting a bit too arty with it all.
Liked the simplicity and especially preferred a few months ago for making more professional / B2B type images. The edit options just made it easier to do quick things quicker.
HATE that you can't save designs on the freemium.
Though, that said, it made me convert, but then it has to work extra hard to keep me, since that's a default on other free options.
Haven't seen as much product development in areas that I would have liked as much, nothing really new that wasn't there on launch that makes me think this is growing, iterating or improving - that said, it's pretty damn good if this is what you need anyway. Conversely though, Canva and others are adding quickly (sometimes stuff I don't need) but their templates have sucked me back over. Again, speed.
Social media pictures, graphics, light image editing for background images, placeholders, etc.