So the other day i read a book called "One Foot in the Grave", and it billed itself as an urban fantasy novel. Allegedly it takes place somewhere near Cleveland, though I didn't recognized any places mentioned...Well anyway, it read more like a trashy romance novel than UF. Sure the main character (Cat) is a half vampire...and sure, she works with a vampire to kill OTHER vampires...But for the most part it felt like a romance with 'oh yeah, and he sucks blood' tacked on.
I'm not sure how i feel about UF novels crossing into romances. On the one hand, i love a trashy romance. On the other, i like UH. Putting them together should be a great idea...But it doesn't usually work out for some reason. Perhaps they don't put enough about the supernatural in it for me? Perhaps they neglect fleshing out the characters? I don't know, but there is something about them i just don't like.
Some novels mix it well (or did originally). Anita Blake. Sookie Stackhouse. Bella...Swan? (Nevermind the last one!). But eventually they fall off the ladder one way or the other and should either stop writing or claim a genre switch. "One Foot in the Grave" is apparently part of a nine book series, and if the first book was this bad, i shudder to think about the other eight.
But that's just my opinion.