So, from reading up it seems that in short the hype about demo is that if you time all of your trinket procs, meta, and ds with your "DoomGuard" this substantially increases Demo's DPS enough to compete with affliction? I've always liked affliction and will probably stay affliction. I do like to keep up though and I'm always Demo in 5 mans or when I get bored or for the gimic AoE trash fights.
If, this is the case though regarding above...isn't it a little bit annoying with the long cooldown of the Doomguard? DPS go crazy then you wipe and then it might not be up in time...wish Blizz would fix that cooldown...