Muscle memory is hard to shake. If you've spent years in Photoshop, you're not going to have a good time switching to GIMP. It took me three tries to switch over, and even then, tools like PhotoGIMP were incredibly helpful. You're unlearning years of shortcuts and what feels ingrained, which is hard to commit to for a tool you've never used before. If you're on the fence about switching to an alternative, then this tool is exactly what you need.