Riley Brackenwrote a review of Cutter U-lock on December 31, 2012
Familiarity: I've used it once or twice and have initial impressions
I found this in my stocking a week ago. So far it is definitely well built. You can feel the quality when you hold it.
But as said before it is very heavy. You could use it as a club... or a hammer.
So ultralight bikers beware, commuters ( like myself ) its great quality for the price.