Originally Posted by
forkyfork
But no bike lock is 100% safe.
Take a calculated risk. You're not 100% safe riding to and from the grocery store either. Assess the risk and try to find a lock combination that matches it. If you're looking for 100% certainties in life you'll never be able to do anything.
Incidentally, the poster who reported a couple of nice bikes being stolen from an apartment bike parking area, that's probably one of the most risky places that you can park your bike. Think of it from the thief's point of view. He gets to case out the bike. He knows that you park it there frequently. He gets to see what kind of lock you are using so he knows what kind of tools he needs to bring with him. It's reasonably out of sight so he knows about how much time he'll have to work. There is no lock that will survive that kind of attack. I wouldn't park anything there but a beater.