This is something I've been discovering with my tanking experiences in the last week: Unleash is not just for PvP, and it's something you SHOULD spec in to.

Most instances have multiple mobs, and at least one boss, that have multiple stuns or locks. Unleash is invaluable for breaking out and continuing to tank. Agro is super touchy in ToR, and losing two or three seconds of agro generation can mean the difference between locking the target to you, and having it run wild through your group. My original Immortal spec did NOT have Unleash specced, but I will be speccing it now after experiencing the actual game.

This is my newly modified "Unleash is definitely worth speccing" build: http://www.torhead.com/skill-calc#101fMGrubrouRZhr.1

I've got two points in, but even one point will make a huge difference.

(I made a post that wasn't complaining about something and might actually be useful to someone! Rejoice!)