Naw, this is only somewhat inspired by OSO. (Trap, Sis and Taku lineup)
In fact, wasn't OSO the first of its kind? Of course it has issues. (OSO is really more a crafter's MMO story, this being a Summoner's MMO. This is ALSO the only chapter I have read so he may end up crafting as well.)
And don't even mention SAO. That atrocity is a standard Godly-Edgy-Shounen-Hero-gets-all-the-girls crap, and unrealistic game hopping.