I am still playing quite frequently. I play mostly on the Defiance side though.
My team is all very low, still in the first zone after starting area. Been having too much fun playing solo.

Not sure I can answer your class balancing question. I don't really care about that too much as I don't enjoy pvp at all and therefore don't compare classes. I probably should, but I don't. I find what I enjoy playing and stick with that.

I am enjoying playing as much now as when I first started.