Hi Lift jacks have their place.
Very, very true. There has been a couple of times, when all else has failed, the Hilift has been the one who pulled us out of some pretty bad bogs. They're a recovery tool, not just a jack.
FWIW, even though I have armor, I've NEVER lifted my truck from the bumpers or sliders. I always lift from the wheel using the Hilift attachment, this helps in stability as you dont need to lift the jack as high to lift the wheel to where you want it. I also always use a large piece of wood where it stands for more stability.
When I need to change a tire, I use the HL to lift the amount needed and then place the bottle jack already extended under the axle.
Hilifts are WAY TOO DANGEROUS to use on their own, I wouldnt dare remove a wheel with only the HL holding the car up, let alone get under it. Even on the instructions of the jack it specifically says not to use it to change tires, to use a bottle jack or similar for such situations.
I've seen inflatable jacks being used, they're pretty cool. Although Im hesitant to use them because I think the pressure caused by the weight of the vehicle when inflating/lifting on the engine cant be good. Im also pretty happy with my Hilift, but seeing them perform, I say give them a shot if you want an alternative for lifting the truck on off road situations.