Is there something special about the Nova Kool?

I learned a while back that for stuff like this, it's better just to go with the good stuff right from the get go. Yeah, the cost stung...a LOT, but I've been nothing but happy with this unit, especially with the amount of abuse it's taken in stride with me, given that it's been bolted down in several vehicles that have seen air time and down right beatings off road. In all honesty, I'm absolutely amazed that this thing has held up this well.