I wondered the same thing. I thought I wouldn't enjoy it since, as a woman, I don't have a sweet hipster mustache to pose ironically with.
I finally broke down and installed the app just to give it a go, and I really like it. It makes sharing photos across platforms really easy, and it's a very stream-lined, well designed app. The filters are also pretty fun and help distract from sub-par photos. Give it a go and see if you like it.