So... For me personally this is the first Anime series I've ever watched. I used to be against anything anime and took the high road when it came to watching it. That was until I stumbled across SAO. I binge watched through the Aincrad and Farie arc's in 2 days and I can quite happily say. I loved it. With this being my first anime I know my opinion won't sway much but for what it's worth, why not?
Art: 8 (Super beautiful scenery)
Sound: 9 (Didn't have much to compare it too on my behalf but from an aspiring sound designers PoV the sounds where solid and consistent throughout)
Characters: 8 (Really liked all of the characters. I'm not soft to emotional punches in movies etc, but the relationship between Kirito and Asuna really plucked at those mighty heart strings in parts, truly goals :D )
Enjoyment: 9 (Like I said it's my first anime but I loved the first 2 arc's and I've just started SAO II so I can't wait for that)
Overall: 9 (For my first anime, I don't think in my mind I could've started anywhere else. Perfect for a newbie anime watcher!)