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.
fr. if anything should've had one more season (or at least a couple more eps in season 3), a few arcs/characters felt like they didn't get a proper sendoff and a few threads left dangling that shouldn't have been.