I have a set of ATRs and wanted to give a quick review. I had these installed on my wife's Pathfinder that was used mostly on road with some light offroading thrown in occassionally, and they served that purpose very well. They are an excellent road oriented AT tire. They perform very well on pavement both wet and dry. They are quiet on road, track very well and seem to be holding up quite nicely. Have never had a problem with hydroplaning in deep rain or standing water.
Off road they perform pretty well considering that the tread is not very aggressive. They are solid performers on gravel or sand roads and and light trails, but mud or loose terrain will give them some trouble. I would say they are middle of the road as far as AT tires go for offroad use. If you spend alot of time offroad, then you will find that they will get overwhelmed pretty easily, and you would be better served with a more aggressive tire.
I have taken over that Pathfinder as my daily driver / trail rig and have added a small lift and plan to replace the ATRs with some more aggressive treads. Bottom line - the ATR is a great tire for the right user / conditions. I have also run a set of the Scorpion AT (not ATR) tires on a lifted Trooper and found those to be better suited for more trail use.