'Hello,' which was produced by Greg Kurstin, falls in that category of being a 'conventional' Adele ballad. It's not innovative or groundbreaking but does come with a big chorus.
This is actually a good song. It's just not as good or anthemic as 'Rolling In The Deep.' Don't nobody come for me just because I'm not creaming myself over the song, lol. Though, I do think this one's a grower. Oh, and the amazing parts don't really come in until the end when she's delivering those power belts and emotive singing. I like that the song is lyrically driven and she conveys such passion for story-telling.