A friend of mine has a pro shop.and said he is 100% water born .he said his body men really like it.They claim color match is much better.He has a down draft paint booth with a way to bake the paint. I wonder how it will hold up as it ages.It is not mandatory here yet,but most of the shops have went to it.I wonder if it cost less. urethane is costly.I remember when I could get a gallon of paint and reducer with hardener for $40.