Photoshop is garbage with a randomized interface that is also trying to sell you things. People think it's intuitive because it's the industry standard and stockholm syndrome. GIMP is bad (but improving) on print color, and on non-destructive filters and layers.

The hyperbolic invective hurled at GIMP by Photoshop users is astounding. I often spend all day in Photoshop and Illustrator doing preprint and it makes me want to burn Adobe to the ground every day. I would gladly never look at PS again if GIMP got color right.