For me, the CC makes PvP uninteresting (anything that stops players from playing lowers the content value). The problem with CC is compounded by no notifications over your toon; so things just stop working, you can't see what happened, and it feels like the game broke.
The most fun I had was a short 1v1v1 engagement where there was minimal CC, and we were all running around shooting at each other.
Anyhow, this test has convinced me I want nothing to do with PvP, and I'm additionally disappointed, because I know that gear balance will be driven by PvP, not PvE.