It's improved somewhat over the last few releases, but it still freezes up for several seconds with absolutely no feedback that it registered my keypress. On my laptop this still takes >5 seconds. Also the fade-in animation takes some time, during which the password field is visible but I can't type in it. I have to type my password twice almost every single time. It needs to be more responsive that it is unlocking, and more definite about when you can start typing. Or... they could just get rid of it.