I bought my dad and myself a couple of the Cabelas auto inflate ones a couple years ago. I usually don’t wear one, but when it gets nasty out at Neah Bay, it’s nice to be able to put one of these on and still be able to fish. Out of curiosity, I have set mine off to see how they work. Worked great and repacking is as simple as re-folding and putting back in the Velcro closed pocket. Instructions say to replace the co2 canister annually I believe. That’s where I was surprised at the cost. Vest was around 75.00 on sale I think, but the replacement cartridges were 35.00-40.00 if I remember correctly. They are a lot more comfortable to fish in than a regular vest, which I could never get myself to wear while fishing.