Some nice, smooth, consistent quality. Better Call Saul was in my opinion pretty consistent. Single season anime is almost always consistent, like My Dress-Up Darling or Terror in Resonance.
Not dragging on longer than the series needs to seems to be a key point.
The Venture Brothers, probably one of the only show I know that gets significantly better as the seasons go on.
Yeah, I'm impressed at how they managed to retcon season 1's transphobic jokes into being funny. Venture Bros is consistently great