Well, each to his/her own ^-^
EDIT: wouldn't say it's great, no doubt, it could've been a lot better but love the idea. Who wouldn't want to play a virtual reality mmorpg? C'mon.
IMO, it's a lot better than SAO. From the style it's drawn in to the whole concept of the anime. SAO wasn't bad, I liked it, but I wouldn't be able to rewatch it.
Don't know if anyone recommended here yet, but if you're looking for something new, definitely check out Shingeki no Kyojin if you haven't heard of it already. I'm hooked<3