I don't know.. With a thin chassis, 14.1" 1080p touchscreen, 802.11ac wireless, msata option, it seems that they haven't really skimped on anything.
Correct me if I'm wrong, but while it's true that the OS is free, they're basically selling a premium, higher spec notebook compared to other 899$ Windows machines, with a full functioning OS as a bonus.
That said, if you can live without the touchscreen / 1080p / slim chassis / wireless ac standard, you should find much better deals elsewhere.