My uncle recently just bought one of these, and WOW!! It has plenty of power. It somewhat lacks in the "get-up-and go" power though. The 4wd works great, and so does the locking and unlocking differential. I challeneged a Prarie 700 to a pulling competition while riding it along some trails and pulled it backwards in 2wd no problem, even though I know there is a huge weight difference. It climbs nice size hills in 4wd easily, but in 2wd the belt slips going up a hill. Hopefully I'll get some pics up of it in the next few weeks from other rides with it. Please someone else say comments about you experience with the Mule.