Shogun is a powerful, pressing muay thai striker and a BJJ black belt who will punch your head off or kick you on the ground until you quit or the referee saves you. That is Shogun.
Before joining the UFC, Shogun's list of victims, and I don't use the word lightly, include Evangelista Santos, Akihiro Gono, Quinton "BA Baracus, I'm done fighting" Jackson, Antonio Rogerio Nogueira, Alistair Overeem (x2), Ricardo Arona, and Kevin Randleman. Many of these top level men were punished.
Shogun's downfall against Machida. Shogun's aggressive style is exactly what a counter-puncher loves, and exactly what Machida is waiting for. I think Machida's accuracy and timing will prove to be too much for Shogun.