Ultimately I enjoyed WandaVision, even though it failed to stick the landing. The premise was too thin or they were unable/unwilling to do it justice, I don't know which. Will I re-watch this? No chance. Was it a fun diversion? Definitely.
I maintain that the MCU somehow manages to be greater than the sum of its parts. Taken piecemeal, it's as sketchy as the kids' comics it's based on but overall, it remains one of hell of an achievement in the realm of pop culture. Easily better handled and executed overall than Star Wars ever was.
I think opportunities for greatness remain, albeit more attenuated as time goes by.