I just transferred my current main from BC, and there is a huge difference.
There's actually RP going on, which is the biggest thing for me. Within ten minutes I found a great guild Imperial side full of awesome people.
Can't speak for the queues, partly because I'm a tank and partly because the tactical FPs have messed me up something fierce. (Came back after a long break.) But whenever I want to run a FP I can without an issue. Hell, even been PuGing Operations with mixed results.
Can't speak for the PvP either because my computer is potato and would explode if I tried.
But Ebon Hawk is a solid server if you're looking for RP at least.