I have never used one and until recently i didnt think anyone actually used the darn things.
I've put it on in the house a couple times and then took it with a couple mornings but after fighting with it and getting tangled in the darn thing to the point of nearly falling down trying to get it on i always end up throwing it back in the truck and going hunting.
I need to invest in the HSV, That looks alot easier to use than the ones that come with the stands.
I use a "Hunter Safety System", and let me tell ya, it's sooo much easier than the ones that come with the tree stands, Plus it has pockets (bonus). There not cheap, but well worth the cost (IMO), I mean, can you really put a price on your life, or your ability to walk? I think not. Be safe guys, if not for you, than for your loved ones!!