I'm definetly going to invest in one next year. I'm tired of putting on 6-layers of clothes and feeling like an eskimo and still freezing my butt off. If it means staying warm in the harshest of weather conditions it's well the money. Only draw back to the heater body suit that I see is trying to get the body suit un-zipped and pulling up the gun when that deer walks into my area. The other drawback that I see is something else I have to carry into the woods. What about hunter orange? You going to attach a vest to the body suit with clothes pins?