In regards to them not having much off-road ability; that I definitely don't agree with.
Have a set of these firestone's on my company truck; I work for underground locators/pipeline where we look, locate and pothole for underground utilities....this job takes me into fields, up mountain slopes, down unpaved, mud-pit roads, you name it we have to get to it or through it.
Have no complaints with the little ford ranger these tires are mounted onto, for an all around tire that does great on the highway as well, these aren't bad.
This company has had some cheap goodyear a/t tires, wild-country, sumoto's, bfg a/t's, and these firestone's seem to be much less prone to suffering off-road issues, haven't had any flats or repairs, etc.
If one needs an extreme off-road tire though, they need to look at like the new Goodyear Duratrac's, tread depth is much deeper, etc. I just mounted these on my Isuzu rodeo....they are superb off-road thus far, but again, not as smooth on road as milder A/T tires would be.