So yeh, Gary Stu and Waifu - these characters are pathetic (1).
5) Enjoyment - Needless to say I didn't enjoy it.
Villains (minor spoilers) - There are 2 major villains in this series and they're both terrible.
So that concludes my issues with season 1, which the majority of SAO fans consider to be the best part.... Without going into spoilers, the 2nd part of the series takes place in a different setting, with a mostly new cast aside from our main hero. Asuna is introduced as a strong player who can stand on her own with Kirito, that is for the first couple episodes.
This part of the series probably deserves the award for most unnecessary story in the history of anime. Once she reappears she barely does anything other than cook for Kirito.
Some are allies, while others are foes, like Asuna Yuuki, who commands the leading group attempting to escape from the ruthless game.
To make matters worse, Sword Art Online is not all fun and games: if they die in Aincrad, they die in real life.
For example in the beginning we are introduced to a character named Klein who is quickly pushed aside after the first episode and barely seen again and doesn't really make much of an impact at all on the story later on.