Attempting this today on some models I got from a friend. I decided to test on a full metal model, and some painted plastic bits first to check and see how safe it was for plastic.
I pulled the plastic bit out after 10 mins and though it had turned to jelly from the feel. It was actually just the paint and primer that had turned to jelly. I could actually peel it off. I used the brush to clear some of the more detailed areas and it seemed to work pretty well. I'm using the 1.84 Walmart brand Non-Acetone nail polish remover. Once I'm finished with the metal I'll experiment more on the plastic, but I have a feeling all will be well
Update: I tested on a full plastic mini today. It looked like it did eat a bit of the details so I stopped. The models I had were only painted once so I just re-primed them and it didn't seem to lose much detail so I gave up on the stripping of the plastics.