Lately, I have bought a copy of Art Rage4, So I gave it a try.
I am surprised in a positive, The program has a clean layout, with the essentials tools, the brushes are used in a more traditional way, and often tricky. It has a lot of little tools that help your workflow, Such as tracing or reference tabs, where you can stick on your painting something to refer to. The menus are neat and user-friendly, but not as vast and detailed as photoshop. I am impressed with the program which I will be using from now on.
Here is a my new caricature painted on it.