I have only owned my LE for a 7 days now and really haven't put it to the test. Only going up and down a 350' road to my dock in front of my house. I did feel a slip and an immediate jerk (power to another opposing wheel) which felt a bit odd not really expecting it. The main thing that I am feeling and hearing is the auto shifting which is so unique compared to the Teryx and Commander I have owned. As for the I4wd I think it is likely the best for the average guy but might be lacking for the hard core guys putting the Pioneer in the roughest of conditions. Time will tell, Im anxious to find out myself.