What the original SAO story should've been. Kirito and Asuna join up and adventure through the world of Aincrad one floor (per volume) at a time. Tsun-Asuna is much better than her perfect waifu (vomits) persona in the original novels.
I've read all three released volumes, bought from Amazon, and I have to say I really enjoyed them. The books address/fix most of the problems and expand on the better parts of the original story. This won't change your life, but it will certainly entertain you with an interesting VRMMO adventure.
Kizmel ftw.