Can anyone inform me on wether or not Affdots works decently for demonology too?
does not work with any other specc than affli.....and actually you don't need this addon for the 2 dots you use as demo
You shouldn't need it seeing as you will be constantly refreshing while in Meta with Touch of Chaos. Corruption should never drop off on a signle target fight. And for multi-target fights you can refresh it with Void Ray [like on Wind Lord]
Only one I can see possibly needing it and that's Doom however if you have addons to tacks buffs it shouldn't be hard to know when to do it.
Adding to what's been said, with the added Pandemic length of ~1.30m of Doom you are most likely almost always (and always once you have 4 piece tier) refreshing Doom when you have Dark Soul up, meaning you'd have to have buffs that are bigger then that to make it worth refreshing (not even counting the fury and gcd's it costs to go into Meta to refresh Doom). You can possibly take some advantage on occasion, but I don't think it's worth it most of the time.