I've never used them, but I've never heard a bad word about them. There are groups who swear by them as the best thing since sliced bread.
Now, I've used sliced bread, and it works pretty good from a convenience standpoint...but its traction sucks, and it gets torn up pretty bad unless its toasted.
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- TJ
2001 Xterra '03 VG33, SE 5 spd, 305/70/16's, Revolvers, UBSkidderz, Doubled AAL's, 3"SL/2"BL, winch/bumpers, skids, sliders, OBA, Snorkel, pine stripes....
Friends don't let friends drive stock.
http://www.gifsoup.com/view/501230/tj-tackling-crawlers-ridge-o.gif