GIMP has always claimed to be a replacement for Photoshop, and has always failed to live up to that claim when I've tried it.
After being lied to, I'm not eager to try again and see if I'll be lied to again. I'll just use Photoshop because it has always worked where GIMP never has.
If GIMP has truly, finally achieved their stated claims of replacing Photoshop (presumably through feature parity), then I'm glad to hear it for all those still willing to try it, but I've no interest in wasting any more of my time verifying that claim than I already have in the past.