This plugin is like democracy. Sometimes it works, sometimes it doesnt. Mostly it doesnt. Shame.

Everyday I have to reset the alarms from on to off then back on again before it works right.

At first it looks fine, but in fact the the timer is stuck to one tab, so if you switch tab or close the tab that you started the timer with, it will break the whole thing.

Yuck.
More detailed review: no auto-renew timer feature. this is not for productivity. i have no idea what it's for.