Hi Janet and Joan,
I have had several versions of Paint Shop Pro over the years, now I am using PSP X.
It is a pity that I have never seen Painter X so I have no idea if there are any similarities or not..... So can't help you with that.....
But dear Janet, if you use Adobe, understand how everything works, tools etc. then that is perfect isn't it? No need to switch to another editor? Is there a specific reason why you would want to use a different editor?
Enjoy lurking anyway, you are very welcome ;-)
With love,
Tinto