Hm. Well as someone who is super new to anime and the such, SAO was definitely one of those shows I've heard about never actually seen. Until now. Well honestly I thought it was alright. Now if you have read any other reviews of this anime, you'd probably now by now that the things that made it terrible/bad were the story and characters, and I can definitely attest to that. Naturally, with any sort of narrative medium with a protagonist, there is some (or none in some cases,) plot armor to be had, but in SAO, once they had established that he was basically a god, all fear of "close situations" went out the window. Asuna is a flawless partner to Kirito. When I saw the ending of the first arc, I was pretty disappointed, but honestly if it had just ended there (maybe one more episode to tie things up) it would have been a decent 7. Nah. We got another arc, except this time it's way more rushed and felt like a slapped-on, uninspired, sequel within the season itself. Towards the end, I felt like I was just watching it to get it over with, and that is definitely something you don't want to feel when watching an anime (well at least I would assume..). However, the art and soundtrack/VA is pretty good imo.
TL;DR SAO is basically one of those hot girls/cheerleaders at your high school. Super hot, looks nice, sounds nice, but once you get to know her, it's nothing that you expected from your outside perception.