Its basically a story where you fight for your life. This makes each episode anticipating. I can also relate this to Mirai Nikki, cause their also playing a game in which they would have to win in order to live. It shows issues in society wherein gaming can highly influence an individual though I'm not quite sure if this would be seen in the next episodes but its the "aura" I got from watching it.
The art is one of the best. The beautiful world of SAO is very well animated to the point where we actually feels we wants to play VRMMORPG, It provides visually stunning animation. The character design is another notable feature of SAO.
I don't really pay attention to the Openings and endings since I usually skip it if I don't have time. but its sound effects are genuinely good making you look to the screen intently without distraction.
Our protagonist Kirito seems to be a skilled gamer in SAO because he has experience in the beta version of it. Kirito has a bit of an introvert personality, and seems to be an addicted gamer who has passion to finish this game. He loved SAO beta, and wants to grow in SAO live as well. He seems to have some reason to dislike reality, or at the very least enjoys virtual reality more. He makes a statement that he feels more alive in SAO than real life.
He meets a good nooby friend Cline right at the first episode, and instead of pushing noobs away like most people would he decided to help him out. Kirito shows an introverted personality whenever Cline talks about meeting up with his other friends, but Kirito also shows compassion for Cline when things get bad.
I believe Kirito will show growth in SAO, and I'm sure we'll see the reason behind some of his characteristics soon. In just the first episode it was revealed he's a strong person. Not many people can be calm after facing a life and death reality. Asuna hasn't made an appearance yet, we'll see how she is in the next episode!
As of now, I look forward to the next episodes and I'm hoping that its aspects and flow of story won't change or drop down instead it would just raise higher.