Earlier quoted context omitted.
Too bad GIMP is such a crappy alternative.
Ehh...depends what you're doing. 99% of the time, I just need to crop an image to a certain size. GIMP is actually much better than photoshop for this particular exact task. Nice UI for resizing the selection box in place. Other simple tweaks - brightness/contrast etc - are handled perfectly competently. It certainly isn't a drop-in replacement for the sort of magic 'proper' photoshoppers do. But for a semi-competent…
Forget about easy skin retouching in GIMP, no 16-bit/channel in official release yet, forget about high-end fashion photography with GIMP. It's still not there :-(