At first I wasn't impressed at all. I thought the graphics were very lackluster, the character sheets are boring and bland to look at and the voice acting is often quite subpar. But the more I played it the more I came to like it. After a while you come across quests that are quite unlike the usual MMO “bring me a hundred of those” and are instead multi staged and quite deep.
Also, and I don't know if this is unique to ESO or how MMOs come these days but the game world is different for each player depending on what stage of a quest they are at. For example if a quest involves you riding a town of bandits, once you complete the quest and kill all the bandits that town will stay in it's bandit-free state. It will not simply reset to its initial state reminding you you're in a game and nothing you do matters because the world simply resets. Obviously, for a player who hasn't completed the quest yet the town will still have the bandits. The same goes with quest giving NPCs who may move from location to location as the quest progresses. That's why you often see players apparently talking to empty space. To them there is an NPC there. I really like this aspect of Elder Scrolls.
I also really like the Activity Finder that automatically groups you with other players looking to do the same dungeon. Not all group quests and dungeons are on the list so there are times when I found myself asking for help on zone chat but in general it makes grouping much easier.
I recommend this game if you're an Elder Scrolls fan and don't have a gaming machine. But you should be aware that you'll have to wait til June '17 to revisit Vvardenfel. As yet its not accessible.