Does anyone use Carousel?

How do you like it? I tried it out and liked it but I feel like it's a waste of space. I can see my pictures within Dropbox. It's like having the Facebook Messenger app when Messenger is built into the Facebook app. It's a waste of space. That's how I feel about Carousel but I want to like it. It has great features, so why doesn't dropbox just implement it into their Dropbox app?

Anyways, is anyone using this app heavily? How do you like it?