As per what other people have said Maxtrax are great IMO.
I rate them very highly and one of the essential self recover tools if you do any sand driving. But they have limitations like all recovery equipment.
Some people rely on winches but I'm sure every avid 4 wheel driver has been in a situation where a winch is just a dead weight on the front of your truck which can't help you (mainly on a beach by yourself with not a tree or another vehicle insight).
One time a mate and me drove down a very boggy beach in SA (salt creek). He was the lead vehicle and started to bog down. He then lost momentum, so tried to reverse, which due to the steepness of the beach forced him down lower on the tide line towards the water and got completely bog to the chassis.
I was still high on the beach and fine, but he said he need a snatch. It was our only option at that time because he had about 15Min's before the tide and waves would of taken his 3 month old Colorado. I new it was boggy as F*#* and would get stuck, but didn't have any other option. So i turned around and reversed up and snatched him about 2meters up the beach, which got him far enough away from the water.
So now my vehicle was bogged and his, so i got the Maxtrax's out and my ute was out in about 15mins. It then took about 45mins to slowly use the Maxtax's to move my mate up the beach high enough to turn the car around . We actually had to use the Maxtrax'sto turn him around so he had a straight line up to drive off (it was that soft).
By the way we were both running 15psi before we went on the sand.
So in that situation my mates car could of been lost and mine as well if we didn't have our Maxtrax's. I know other anythings work to add traction but trust me there was no sticks to jam under our tyres or time to find them and the don't work as well as Maxtrax's.
But if I had my winch, which i have now, i would of just pulled him up the beach, because he was in range and i wasn't bogged.
Some people may think we were dumb to go down the boggy beach like we did, but we had in our mind reasonable faith that we would get our self's out of any bog with the Maxtrax's, which we did (and cracked a beer and had a laugh about after).
The point I'm trying to make is Maxtrax's are not the be all and end all of recovery equipment, but all recovery equipment has it's place. If we didn't have Maxtrax's we would of been stuffed. But if i had a winch would of been fine. If my mate had a winch i would have to get my ute bogged to create a anchor for him.
You also have to know how to use them. If I'm driving down the beach and start to bog down, i get ready to use the Maxtrax's, I don't try to reverse and bog my self down further, i just grab the Trax's and get myself going again to hard ground.
Sorry for the massive rant, but i do like Maxtrax's, and do a lot of sand driving.
Maxtrax's are light, easy to store, work well for there purpose, handy to use as a base for your jack if you puncher a tire in the sand
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EVIDENCE
My mate stuck
Snatching my mate, the tracks high on the beach are his, when he tried to reverse (dumb arse) he just got lower and lower.
Recovering myself
Using the Maxtrax's to move my mate down and up the beach. Note how far we have moved him from my ute in the distance.
After we turned him
Still soft sand on the way back after we turned him. I was buggered at this stage after pulling Maxtrax's out the sand and running up and digging and placing then for him, i told him to have ago (no that's not me with the dreadlocks)
And free finally. It was actually blue sky's before he got stuck, then absolutely pissed down the whole time while trying to get him out, then went blue sky's again once he was out, and never saw another drop of rain the whole long weekend.