I loved how the story is finished in itself but there is a lot of subtle potential for further stories. I often have issues with reading a trilogy whose first book is clearly a stand-alone story and then suddenly the author decided to add some more books because the first issue sold so well. I don't get that feeling here.
I also liked how the story avoided the usual fantasy-tropes like "we're accidentally on a quest together so we have no choice but to fall in love" or "I totally unexpectedly found out that I have high-potential magical powers to save the day, although everyone thought I'm just human" (although I still half expect that to happen further on).