Although I like Relayer, I don't think it represents Yes' greatest work. Certainly, there are moments of brilliance that are among the best of Yes' songwriting, and the musicianship is fantastic, but overall presentation, I think, is diluted by overindulgance.
My favorite aspect of Relayer is the experimental nature with progressions, chord changes, and rhythm. The worst part of it is it's lack of direction. Compared to Close to the Edge, Relayer seems a bit uninspired. As always, Chris Squire's bass work is tremendous. In my opinion, he one of the standards, by which bassists can be measured.