I have one and I like it for what it is. Yes, in 4H on dirt roads it is a bit of a pig at any sort of speed. The answer for me has been to switch back to 2WD far more often than I used to. I don't feel like this has been any sort of handicap at all, and I imagine that it applies to all Auto-Lockers, not just the Detroit type. In the bush it has been a fantastic traction aid for what I do. Touring, camping, fishing in remote places...general stuff.