Is Kuvva really worth the money?

So I was browsing around this awesome website (here) and found this app called Kuvva. If you're not familiar with it, it's this wallpaper app that apparently has very nice wallpapers (better than those generic "iPhone 5 Wallpaper" apps). Anybody have this app? If so, is it worth spending $1.99? I would love to search through for some wallpapers, but want to know if the photos in the App Store do the app any justice, or if that's misleading.