photoshop died on my mac.

it won't load anymore; when i click on the photoshop dock icon it crashes my computer.

so now i got rid of my mac, since without photoshop, it's useless. how much does ubuntu cost?

I did. All the usability issues that I've read are - the file chooser sucks, different brushes for different sizes, and it works differently to photoshop therefore I lose productivity because i'm habituated to photoshop.

I read that it has negative usability issues. The three I listed in this post is a good start. I want more examples.