So I was invited to, and have been participating in some of the beta testing for ESO. I have read that was the only information I could disclose in public about the beta testing.
With that said, I highly recommend any veteran gamer (especially veteran MMO gamers) should read the preview of ESO by PC gamer. I would love to post a direct link but don't have permission on these forums. So, just Google "pc gamer elder scrolls online preview." It's the first link down. http://www.pcgamer.com/previews/the-elder-scrolls-online-hands-on/
Because of the NDA I can't give my own preview with in-game examples, and believe me I have much to say, but I think the pc gamer preview really points out some interesting opinions of ESO. Interesting things to think about before making a financial commitment.
I would love to make some direct quotes from that preview but am not sure if even that would be frowned upon. Please just read it carefully for yourselves.
Fellow beta testers - If you're going to reply, please remember under the NDA you can't discuss anything about the game publicly that hasn't already been officially and publicly stated or risk having the post/thread in question removed, and your game/forum account closed.