true but season 4 is also good. The release by Cartoon Network (with hiatus and bomb and shit) screw the pacing.
I constantly watch the show on Bluray and stream (I know i'm not alone) and in even the season 4 is way better with its balance restored.
Most of people complaining are focused on gem-drama forgetting that beach city episode aren't filler but serve to talk to various subject that further characterization.
Steven Universe has no bad season just some episode that can be both hit or miss depending of interest and sensitivity of each viewer.