This is a great tool. It works almost every time. The interface is a bit intrusive but it does have a lot of bells and whistles.
Now to my main gripe.
How dare you change tabs on me every time you throw a background update. I hardly ever actually use this add-on but it often (Once every ten days?) rips me away from what I'm doing and begs for attention. If I'm watching a you tube with a friend it is a pain in the arse.
If I buy you a coffee or two will you stop commandeering my browser?