Because I retired from a university I get to take classes for free - and many of those in the art department come with a subscription to the Adobe suite. Otherwise it would be too pricey for me.
I'm currently working on a BFA in photography - and following my instructor's suggestion that I try using a tablet for photo editing. Since the 90s I've edited almost exclusively with the touchpad on my laptop (using PaintshopPro - less than 1/10 the cost of Photoshop). Since I'm working on the non-photography part of the BFA this semester, I decided to use my professor's suggestion to play with a painting app while I'm waiting for classes to start.
It's got 3 sets of digital pens: pixel, vector, and live. Live includes watercolor and oil. I've got a miniscule amout of experience with oil and none with watercolors - but based on understanding the theory I think the app mimics watercolor pretty well (except that the watercolors stay "wet" forever. I don't know if I'll play with the oil classes before classes start next week.