His work rate is exceptional, but I'll go back to the same thing that I think will be his downfall eventually, he never looked liked scoring, which is what you need from a striker.
He's got far more than his exceptional work rate. Pace, intelligence, skill, hold up play, strength and aerial ability to name a few. Bar Jesus over at City how many others of his age are playing like he is in leading the line for a Premiership club? And no, being a good/great striker does not solely rely on putting the ball in the net.
Try a positive outlook for a change, you might find you like it.