The MC is the typical guy that doesn't talk much, somehow has the power to outperform anyone and do impossible moves at critical times with almost no effort and is surrounded by female characters that all want him.
There's forced drama very early in the anime (the crystal part, that was hilarious). After the first arc it all goes to the shitter, it turns into a forced romance anime with a second MMO world suddenly appearing with no real death and therefore no suspension. But you can fly, sugoi!
Yui is completely out of place to the point where I ask myself why kayaba, the main antagonist, would make an AI have the body of a little girl with the wish to play house with kirito and his girl near the end of the first arc. She has no point existing in the first place.
The main antagonist's motives were never properly explained. He's just a microwave killer for the sake of a floating dream castle.
There's way more, but that stuff wouldn't be spoiler free. However, the soundtrack was pretty good even though it always used the same tracks at certain scenes.
Overall, pretty badly done anime, would not watch.
