I did think it was a little long the first time I saw it, but not on repeat viewings. The two of them play off each other so well it's surprisingly clear what's going on, without any verbalization. Rey's pushback surprises them both, then emboldens her and sends him running off to daddy. That scene could have gone wrong so many ways. I have a feeling outtakes from it might be hilarious.
Two themes aside, I thought the prequels had awful music. But I can't remember a single new theme from this one after three viewings - none of them stick - and a lot of the incidental and action much was kinda generic. I'd put it below the OT by a fair margin, but above the PT.