The combo system is very basic atm but does show a lot of promise. Some classes also get much more mileage out of it than others, and some classes don't open up until mid levels. Pugilist combos have you moving all over the place so you might want to give that a try, you will probably want some abilities from it anyway. Party-wide combos are in the works so they are also something to look forward to.

There is a unique keyboard/mouse interface the devs are working on but I can't remember when it was supposed to be implemented (next patch is going to add a toggle to get rid of the extra targeting confirmations that aren't needed for mouse and keyboard users, so it's a start). And content wise the next patch is looking to add quite a bit of it, but of course we have to wait and see just how involving it is. Since it's stuff that is meant to carry over into 2.0 it will hopefully be good.