Wandavision is personally one of my favorites. Yes, you probably will have to watch all the other Marvel movies to understand this but when my friend was watching it she was just fine. It was the show that I looked forward to every Friday and I hope for a season 2 (although it most likely won't happen because at the time I am writing this a new Marvel show is coming out in two days). Personally, I think that episode 3 is the worst one but it's still not bad, just awkward. Also, on episodes 8-9 there are in fact end credits so make sure not to skip those because I almost did and I would be so mad because whenever Marvel puts things at the end of their shows/movies, you know they are important. Overall, 5-5. I don't think I have ever been displeased with Marvel.