I'm so used to using W,A,S and D as movement keys that I just get confused and this is worse in a battle situation. I will play around with key binds and see if I can come up with something to make it easier.
I suspect others may also find this difficult as W,A,S and D is the most popular layout for movement keys in games. I can't think of any games that use the cursor keys.
Apart from these control issues I'm enjoying the game but it's much harder that the first one or maybe I just need more practice :-)