I had the opposite experience so I can confirm it is Gimp's interface. I started with Gimp and found it painful to use. I spent hours and hours reading tutorial

I had the opposite experience so I can confirm it is Gimp's interface. I started with Gimp and found it painful to use. I spent hours and hours reading tutorials for basic actions. Photoshop on the other hand was easy to jump into and start using just by reading labels. You still have to read/watch tutorials but things are much better labeled and organized and you find buttons/menus where you expect them.