After reading about this product as a paint stripper, I decided to use it on a styrene locomotive I had previously painted with rattle can paint. Nothing ever worked to strip the paint.
Stole the wife’s yellow can Easy Off, and it softened the paint within an hour. Lightly scrubbed the loco shell with a toothbrush and the paint came off very easily. And its water clean up. Caution, wear rubber gloves.
Used it numerous times myself. After spraying the shell liberally, I place it in a zip-loc bag to contain the chemistry and it seems to work faster that way.