It is sometimes tricky to time the vault lock interval. In the morning, I go through a dozen logins and keep re-entering my passcode. The rest of the day, I hardly touch things.

Given I am not worried about someone accessing my passwords when I am actually at my computer, the concern is when I am away. If the vault could lock when my computer screen saver comes on (or when my machine sleeps, etc.), that would be perfect. I could avoid having to rekey my passcode constantly, while the vault would be secure when I am away from the machine.