I've played Elder Scrolls Online since the open beta weekends and from my experience, it came a long way from what it is during the beta stages.
I was disappointed that the game was a monthly based subscription when it was recently released but after months had passed they announced Tamriel Unlimited, I just could not hesitate on getting the game once the update releases.
The game still has some PVE quest bugs but although I'm not sure if it's fixed by now as I just skipped that quest and moved to another one.