Pink is a wonderful fusion of different styles, I think. I love that it opens with a shoegaze track and then rocks out for a bit, then there's kind of a sludge metal track, then back to rockin' my dick, and then ends with not necessarily a drone track but has a long passage of repetition. It's a perfect album in my opinion.
It's also so far the only one I really love. Smile never quite gripped me despite having some good tracks, and I haven't been too enticed by earlier stuff. I feel I might like Noise from the little I've heard.
I agree that there's not much cohesion. There totally is on Pink, but the others lack a little something-something.