To be honest, it was something of a chore to read this at first, but don't be deterred! Although it takes a while for the story to pick up and get interesting, the characters were charming enough to see me through the boring parts. I love that the protagonist isn't the typical swaggering, brooding hero of most Regency novels. Gilly makes you want to pinch him and gather him up in a hug, not swoon on your feet -- and that's a refreshing change.
It's difficult not to enjoy Gilly's discovery of his capacity for independence as much as he does. The progression from naive lordling to a Duke (with the proper capitalization) completely pulled me in, and by the time he was properly Capitalized and master of himself, I found myself cheering on every little victory he came across.
This was very much an unexpected Heyer favorite.