I've killed a buck and a doe from mine and I love it. I still use regular stands but I really like the sling for being mobile and quiet. It's an awesome tool IMO. I'll prepare 8 or 10 trees on private property with screw in steps and then hunt wherever the conditions and sign dictate.

If the tree already has steps, I can be up and hunting in about 30 seconds without making any noise. I also like how you can keep the tree between you and the deer until you are ready to shoot. Or if you know you aren't going to shoot, it minimizes the chance of getting busted by does or small deer.