Reliable notifications of action on a review I authored

I think the feature is just buggy, but I want to be reliably notified when a reviewer or observer has added comments or defects on a review I authored.  Sometimes I get emails, sometimes I don't and I can't trust it enough to know that I don't need to take any action just because nothing is in my inbox.  So I just end up polling Collaborator repeatedly, or I ignore it for a couple of hours if I get busy only to find that my reviewer dutifully made comments a while ago and I didn't know.  This leads to inefficiency in our workflow.