The dungeon system needs a lot of work, it is basically an aoe fest right now with no real mob control and you pull one you get the room. It is also difficult to target a specific creature in a pack.
The pvp was pretty fun, it was a scale war with the faction fighting for Cryodiil. It was pretty cool to see the forts for what they were originally instead of as ruins.
If it came out today, I don't think I'd buy it, but they have plenty of time to make changes.