My issue with Harry will always be he doesn't like runs or melisma. He's made comments to some contestants about toning it down during the auditions, but I didn't like they way he said it last season when he mentored. Other than that, he's funny and knows his music stuff. Mariah was anticipated to be like that, but we saw how that went down.
The show has gone out of it's way to say it's changed from what happened last year when the judges drama in the promo's and how it's being edited. The new reality chief and producers are doing a good job. The joke contestants are few and far between (they are still there, but not prominently shown). Guitars are back with a vengeance.
One of my favorite contestants from last season (one of the Brianna's) is back, so I'm happy.