Tooth and Claw is a Jane Austen-ish tale, of maidens with slightly compromised virtue, inheritances, betrothals, law suits... Except, all those involved? They're dragons. I really enjoyed how Jo Walton handled this aspect: she sets up a whole culture for the dragons, with plenty of history in the background -- not detailed so that it drags down the plot, which is very much about the present, but enough to feel real.
I have to confess, when I first started reading it, I didn't get into it very much. I picked it back up tonight, though, and read the last two thirds of it all in one go, giggling in the appropriate places and squirming on the edge of my seat, wondering how things could possibly turn out alright.
It's fun. It's inventive. It has characters you can get to care about -- I think my favourite is Sher: he seems so basically good, despite his flightiness initially, and he comes to care so much about Selendra.
My only quibble is in that something, whatever it was, in the first third that failed to catch my attention. And, I suppose, how much Jo Walton crammed in here that she didn't really get to examine in the detail I would have been interested in: the issues of the enslaved dragons, the foreign dragons, and the True Believers.
On further thought, that is just like Jane Austen, though, e.g. the light mention of the slave trade in Mansfield Park.