I sure hope that you did not purchase Photoshop.  Photoshop is the industrial standard used by the graphics  industry.  IF you are going into the graphics industry, the answer would be ABSOLUTELY, because that is what your company will be using.  For folks that are doing art as a hobby,  Acadia is correct except with the percentage, I'll go with 95 percent.  Acadia I'm kidding. 

I recommend that you go to PurPlus.com and check out the price difference between the two $600 Photoshop vs $50 PaintShop Pro.

The PSP folks simply are not doing justice to their product, its not just red eye, and crop adjustments for photos, its much, much more.  A  professional artist can from scratch paint a village scene, a seascape, landscape, animals, even a Vicky type figure that could very well be confused with a photograph of same.  Jan