1991 Trek 930, 2005 Bianchi Eros, 2006 Nashbar "X," IRO Rob Roy
they are KHS' house brand parts - take that for what it's worth.
i've got a set of take-off wheels on my Trek with PowerTools hubs, and i've been satisfied with them. but i got the complete (disc) wheelset for less than $50 brand new, so it's not like i was expecting a lot.
for beater/trainer/spare wheels, i think they're just fine.
but as soon as my wallet recovers from buying my new Bianchi, i'm gonna get a new wheelset for the Trek...