Awesome rim, but heavy. You will notice the braking difference they make. I know that I do.
I've heard a lot about steel v's alloy in the bush. And I agree on a theory basis. I run steel rims but, I don't know anyone personally that's busted an alloy rim in the bush. Chipped, perhaps, even taken a chunk out, but got home on them ok.
In the long run, steel rims last. But alloys are nicer as far as weight and looks go.
Weight = fuel consumption.