I don't know how anyone can dislike him. His attitude is one that needs to rub off onto others.
He gets fired up without being ill-disciplined, which Rooney and Schneiderlin could learn from. He also does have a semi-decent first touch, pace and a good finish.
All in all, he is a very good option from the bench at the very least, and not a bad option from the start, especially with the way things are.