Locks that work

taking the link down isn't going to solve anything. If someone wants one, they'll be able to find it. I'd much rather be aware that these tools exist.
I'm very interested in knowing how difficult these tools are to use, owning and using two abus granit locks.
Pretty sure bike insurance often requires proof of theft in the form of a broken lock, so if it's picked and taken away you might have trouble.
A good general security principle is defence in depth, not relying on a single item or process to protect you. So, use multiple security devices, be it multiple locks from different manufacturers, choosing your locking site, choosing which bits of the bike to lock, making your bike seem or actually be less valuable, changing locations etc.
I think I'l be getting a second, seriously chunky lock to leave on the stand near work alongside the granit. It won't be abus just in case this tool's easy to use or the special metal turns out to not be so specal after all.

^this