Survival Hunters are kind of like Arms Warriors. Not a whole lot of self-sustain BUT you have pretty good damage(even from range), great mobility and a bunch of CC especially against melee.
That being said I think they need to roll with a healer in 2v2 for example. CC and peel for your healer, if in danger just kite. It's really fun IMO.
I personally love the new Surv spec with the exception of turtle shell... that talent as it is now makes no sense for a melee dps(since you can't attack like every other melee defensive). I'd much rather see a CoS/evasion hybrid that lasts for like 5 seconds that we can attack through, call it Heightened Senses or something, idk. Just get rid of Turtle Shell it feels gross.