Overall, I feel like it's kinda bad. Or really bad.
The line of site combat is just not good. I'm not sure how that will play out when fighting against large groups, but I imagine it will basically be a nightmare. Because even in a 2v1 fight, it's infuriating. It works in a single player game, but an MMO is supposed to be a social game. Forming groups to fight bigger groups.
The dungeons are all very small (that I've seen). Mostly caves that have a couple of tunnels, or underground buildings that have two rooms.
Even though the game was originally intended for PC/MAC and then decided to go for consoles as well, it feels like the opposite. Like a game that was ported from consoles to PC. The controls are very button oriented. So instead of having lots of options for a keyboard mouse setup, there's just a few buttons that do everything. Which SOUNDS good, but the actual implementation of it is very clunky.
I have enjoyed exploration though. Running around and "discovering" areas feels actually rewarding. Not only do you get a bit of XP for exploring, the game also gives you skill xp while exploring. And there does seem to be a lot of quests in random places to reward you for your curiosity as well.
Also, using a bow seems to be a terrible decision in this game. While most classes have skills that give you bonuses for certain weapon types, I haven't seen ANY classes that seem to support archery. However they clearly want archery to be a viable primary weapon as they make it an available choice right off the bat.
I have a feeling this game is going to go the way of SW:TOR and be free to play in no time. I definitely can't see myself paying 15 a month for it.