i had a pair of HF that i rode for about 3 months. they were pretty dingy looking as far as condition goes, and then eventually the hubshell cracked around the flanges. but this was on my winter beater, and the hubs were pretty beat up to begin with.

also, the ones i used had a spring-clip retainer/dust shield that went along the top of the ball bearings. it was pretty annoying whenever i needed to repack the hubs.