I gave this a try.
It has some beta issues, no tool tips, difficult navigation at times,.. but more importantly;
This app very quickly overcooks an image!
If you want to easily, and I do mean easily, tweek your images to add tons of saturation and blue sky, this will do it for you in seconds, and to a fault. Almost every preset results in an over processed look. that said, it sure does it fast and easy, and for some this will be a desired result.
One easy solution is to do all your well done burnt toast cooking on an adjustment layer, afterwards you can dial back the toastiness to something a little more golden brown.