I rent out a little shop to a bodyman who has used quite a bit of it.In the dealership he worked at some of the paint needed to match was only available in waterborne.He figured he would have to get used to it,he did,he said it is just a change.No better or worse to work with.I think the key word here is waterBORNE,not waterBASED.The water part just replaces the nasty solvents that evaporate off,so that water is what evaporates instead.Myself,I'll be sticking with the nasty stuff unless somebody gives me some other stuff for free.