I received my (free) replacement Kryptonite bike locks in the mail today. (Background: A few months ago, it was discovered that "Tubular" Kryptonite bike locks could be opened with a BIC pen. Bike thieves the world over rejoiced.) I am very impressed with Kryptonite as a company for the way they handled this. They wavered for a day or two in the beginning, but eventually decided to replace the lock of any customer who wanted it. The process was simple: I sent them an e-mail, they sent me a pre-paid UPS ship label, I mailed back my locks, and about a month or so later, I received my new hack-proof replacement locks in the mail. This sort of service and support earns Kryptonite the highest Presto Consumer Rating possible!