Oh good, I was waiting for someone to make a thread. I was going to when the episode aired on Saturday... but got lazy.
Anyways, the first episode was really promising and I don't have as many doubts as most of the community seem to about the quality. I'm still not sure why people are complaining about the one thing that's similar to .hack, though. I mean, so many anime rip off each other time and time again, yet the trapped-in-an-MMO thing has only really been used by SAO and .hack in anime.