Nitto makes the most over-rated A/T tires on the market. Never before have I seen and heard such mixed reviews on a tire. Even on their own website the reviews are about 3 stars.
Sadly, Toyo is the parent company of Nitto and the Toyo ATIII is the second most over-rated tire on the market. It's over-priced, it's milder than the ATII it replaced, it's ugly, the sidewalls are plain, and the rubber compound results in mixed reviews for rain and snow.
Clearly there are a lot of guys here who like to ride band wagons.
If you truly want a GREAT all-terrain tire, you're going to need to look at the Falken Wildpeak A/T3W, Yokohama Geolandar X-AT, BF Goodrich KO2, etc.
The Falken is the best tire I've ever had on a truck, but I'm about to give the Yokohama a whirl because it's one of the few brands I've never done a long-term review on yet.