I haven't had to use mine in anger yet, but I set it up one day and ran a loop around the tire to check clearances with the brakes etc.I'm looking forward to the next big snow so that I can try out the various combinations again. Have some maxtrax inbounds. The bog out is an interesting concept, especially since you can attach a rope/strap to reach an anchor point that is further away.
A decent alternative to get some winch-like functionality without the permanent weight. I don't want to suggest it is the same a a winch, as I'm sure there are some situations where wheel spin isn't a viable option, and of course, it requires an anchor point, same as a winch.