I played it for like 2 days with a friend. Or rather, I played for 1 day with a friend, and logged in the next day and she didn't want to play, and I didn't blame her. My main issues with it are 1: It's a grind. Even on the higher difficulties, the enemies aren't difficult. Many of them are just plain easy, while others get simple buffs. If you can kill X enemy, then you can easily kill X enemy with +50% HP, but it just takes longer. And that's what it all comes down to. The bits I played had no variety in them, it was just hotkey spam on non-action MMO, except with a little more moving around as you do it. 2: The archers have no range. Literally. I love playing as any ranged class, so I know my stuff when I say "this is not ranged combat". Even though many stages are larger, the archer would only have like 3-4 times the reach as a sword. It was utterly underwhelming to see my longbow getting up point blank before shooting at anything. 3: "It gets good after level X." I heard that. I couldn't be arsed to stay around that long. If they have any good content, why not make it readily available? The grind to get up to that level is akin to sitting on the bus as you're going to the theatre to watch a documentary. The ride is crippling boredom and the destination isn't entertaining, but merely holds your attention.
I did try several classes, to make sure I was doing it right. They seemed to have no real differences between them. I mean, yeah, one's got a bow and the other a sword, but there wasn't any point where I hopped into a new character and said, "Oh wow, I need to watch the tutorial for this class!"