I met someone recently who had their life likely saved by one of these. I guess they had a collision that launched them off some height of an overpass. They were still messed up of course, but survived and are well now. I'm inspired to consider one for my 2023 riding.
I seriously recommend it. I put mine over my roadcrafter, and i stopped noticing that i was wearing it within 10 miles. Now "clip in!" is a reflex just like "buckle up!" is in the car.
1) I trust the tether a lot more than someone else's (or my own for that matter) software
2) No battery to forget to charge
3) Uses cheap CO2 canisters making it and easy to re-arm. Many airbags have to be sent back to the manufacturer after a deployment and are quite expensive to re-arm.
hit-air does all this too; i liked being able to bring my own back protector and the improved ventilation of the bag-only system. The helite turtle doesn't breathe quite as well.