SAO has an interesting premise, good animation and nice opening songs, but it's just bad in practically every other aspect. The main character is your typical Marty Stu, who strives to help everyone he meets and gets all the girls and cool powers because he is a main character, the guild mini-arc is a shameless tearjerker, the last boss fight is bullshit, etc. Everything I am saying about the first arc, by the way. The second one is much worse. If you really want to watch it, I'd recommend to check out the first arc (at least it is has some nice moments and I like the RPG-elements of the game) and drop after that.
Mother's Basement has a couple of interesting videos on SAO with a decent analysis, you can check them out: https://www.youtube.com/watch?v=WlVId8QvjPghttps://www.youtube.com/watch?v=3GXCo-InnpU