I liked him in the movie. He was too old, but I was closer to her age so that didn't bother me, and too nearly incestuous, but they don't get deep enough into it to really give me the ick.

Honestly, I see it as a trope reversal. It's usually the fully fleshed out male protagonist with a more shallow love interest, reflected through the eyes of the protagonist. This is just the reverse. That it's a Jane Austen adaptation probably makes that the right choice.