Viper all the way. Been hunting in one for 2 years now. Biggest drawback is how the back rest works. Two bungees wrap around the tree and connects. When you stand up to draw a bow the back rest rides up the tree making too much noise. Stand gets a little heavy carrying long distances in the woods, personally it's worth it with the comfort this stand offers. Gun rest works great as well. Quiet and sturdy while climbing.