It doesn't work too well on the first day. Use it for a few days and it will begin to learn your habits.
I've been using it even longer, and, aside of few "ok, cool" moments, it is completely unusable piece of software.
Deal breaker for me is - you can't rely on it as a weather app, you can't rely on it as reminder, as currency converter, and so on. Simply put, it's unreliable.
And a bit scary to boot, but I don't mind that, seeing how incompetent it is.
I've been using it for a few months