Yea the best way I have been able to describe the combat system is snappy. It's fast paced and captures the wizard duel thing really well, and I love the way I can build my own combos and experiment for combining effects.
You know, in the hands of a writer who is less of a blunt instrument then Rowling is I could see the moral conundrums of interaction with a magical species of elf being naturally servile and the question of how to ethically interact with them making for an interesting plot. Rowling however is not the woman for something that delicate.