As Santana drifted away from 60s rock his became more spiritual. While still a pleasant and distinct sound, his 70s albums definately start sounding a lot a like and blander as time goes on. That feeling is obvious with the ’74 release Borboletta. Less rock, more jazz fusion.
Overall, not a bad listen at all. No true hilights either, though. The band/compositions might not be super tight, but that can be enjoyable in itself. Evoked is a truly varied soundscape full of percussion and tone. You could do worse picking this up, but only unless you don’t already have his previous albums.