Sword Art Online is a great series of light novels, but this manga adaptation is incredibly lacklustre. The main sticking part is the lack of quality in the art (I'm not expecting the same quality as abec's art in the LNs, but at least average manga quality), but there are issues with how the story has been distilled for the manga. Some moments are left without context, which would be confusing for someone who hasn't read the first two volumes of the LN series or watched the Aincrad arc of the anime.

As someone who has enjoyed the light novels and anime thus far, I can't find much to like at all in the manga.