Hmm, I have it for PS3, the only problem I really ever had with it was the frame rate drops, and as soon as that happens I tend to bring up my radial menu straight away, so that I'm not being beaten to a pulp. In fact, the first thing I'll tend to do at the start of any battle is bring the radial menu up straight away and just have a look around and make sure I know what I'll be doing and what not.

Have you got your radial menu set to stay open after one click (as opposed to having to hold down the button to keep it open)? I found that was a major help for me when playing the game. Also, I played an arcane warrior, which meant that I had options from afar, and didn't have to plunge straight into the melee combat.

I think that if you stick with it, and get used to using the radial menu and your quick skill slots you'll start to get the hang of it more. I did enjoy the combat aspect of it, although there are some VERY frustrating battles to be had.