"WandaVision" begins very slow... You don't really know what is happening in the show and you doesn't even know when the action is taking place, because the only clue that you have is the fact that you know that this TV series is happening sometime after the "Avengers: Endgame". Anyway, as soon as the episodes unfold, you find out the truth and everything starts to makes sense.

This show it's not bad, but it's not great either! It has some very funny and emotional moments, but I guess that it lacks its action and more precisely, you don't get to see any action until the last episodes. Even the main antagonist it's not really too threatening, because somehow, the show creates the idea of predictability and you know that however strong the villain is, in the end the protagonist would always win.

"WandaVision" it's not bad and it should not ruin your time, especially because I guess that it's very important for the future MCU's projects. I suggest you to watch the prior MCU's movies before watching this, all of them, if you have the time and the mood, but if you lack the patience, I guess that the movies "Captain America: The First Avenger", "Captain America: The Winter Soldier", "Avengers: Age of Ultron", "Captain America: Civil War", "Avengers: Inifnity War" and "Avengers: Endgame", should be enough, in order to understand what is happening during this show! Don't forget about the after-credits scenes.