I think on balance I liked Street Song better. I just couldn't reconcile myself with the "good" guy of the pair in Princess ending up killing himself and this being a moderately happy ending just because the girl was then set free from a marriage she was determined to be faithful to even though she was not in love. Of course the bad guy still got his comeupance (sp?) and there was an even nicer guy who popped up towards the end to be the love interest, but even so. And to have it just tucked into the last chapter as the whole thing is being neatly unknotted just made it seem like a cheap and horrible trick.
I can't see me reading anything else by this author to be honest, but it kept me amused for a few days.