What I think will attract more people is that this is not rentalware like all Adobe products in the CC series but a traditional piece of software that you can actually buy.
One of the things I like is that they didn't try and turn it into a swiss army knife like Photoshop. So far in photoshop, I probably use less than 5% of everything it can do. So that could turn out to be a somewhat interesting alternative if for some reason my venerable version of PS stops working.
But so far, I use the now defunct Picasa, Irfanview (this thing is fast!), PS and for some scripting stuff ImageMagick.
But like probably more than a few of us, I did go through a ton and a half of programs since the 1990's. So far, ACDsee, Picture Publisher, a short stint with Paint Shop Pro, Photoshop, Picasa, Irfanview, Photoscape, KPT Goo, Printshop and a lot more I can't remember had some time on a machine or another.
So I'm getting used to switching... but only if I can find better and hopefully portable versions.