Great trailer, I'm pumped. As others have already said, the music is...lacking. I would have preferred no music, that track just didn't fit.
My main concern with Chalamet was whether he was going to be able to pull off the scenes where he's got to engage in knife fights, the brief glimpse they showed of him and Gurney looked solid. He looked fast, which is what Paul needs to be since he isn't going to overpower anyone, speed and technique. I didn't even think we'd get worms this early, if at all, I think they look rad.