Well, I want rather desperately (This is the 4th Nesbo book I have read, and I own all of the others that have been translated so far) to like Harry Hole (Arry ewe-lay) and to have good things happen to him. But yes, he IS an alcoholic.
That said, he would have lost his job years ago if he had not had this kind of sort of hunch thing that happens to him. He seems to get things wrong, but then stumbles over important clues that only he notices, and he follows up carefully, and he loves the job and the chase and lives it 24/7. He always gets it figured out in the end. But Nesbo likes to keep it dark and make it get darker, so bad things happen to Harry and to people he cares about along the way.
I, of course, like everything symmetrical and clean and tidy and everyone hugs and lives happily ever after. Bad guys incarcerated and good guys living the sweet life.
But seriously, Nesbo is an intoxicating master of writing skills. IMHO