I'll post my standard reply about the Kryptonite insurance system. I looked into it when choosing my U-lock. You better read the fine print very, very carefully and only after that decide if it's for you (as with any insurance). From what I could tell:

- the insurance is only available in maybe 3-4 countries when I checked. If you happen to live in one of them, you're good to go.
- the fine print is nowhere to be found on their web site. Judging from some posts here, it seems you have to produce the broken lock for inspection to be able to make a claim. If the thieves took the lock too, you're out of luck.

Around where I live, pretty much any homeowner's or renter's insurance has better coverage and less hassle. It seems the Kryptonite insurance is more of a marketing gimmick.

Kryptonites are very good locks. Depending on where you shop, you will have other equally good brands available. I chose an Abus Granite U-lock in the end. It has served me well.

--J