Depending on what content you want to be doing at lvl50, I am not sure how viable that set up is other than for normal, non-DLC dungeons and everything overland other than perhaps soloing bosses (expansion ones anyway). Also, at 30 it's just too early to make a judgement of things and I would say enjoy having a bit of a challenge on overland content before it all becomes entirely trivial.
Regarding the combat, it is as you said. The first time I tried this game I put it down for a year because I just couldn't get used to it at all (I was trying to play the game like WoW). When I came back a couple of years ago and gave it another go, it just clicked for the most part and I enjoyed the game much more, at least for the time I played it.