Played for about 4 hours, gave it a fair shot. Here are my first few impressions before I decided to throw this game out the door. Might be some spoilers below
First, I loved DD, however BD at first glance looked like it was going to be fun. It didn't last too long though, some of the first few fights literally steers you away from the game. The DK party mechanics are so horrible, it makes you want to turn the game off. I felt like I was playing a poor mans version of starcraft micro managing 2 characters. So you would think ok, so build this DK tanky and be a wizard or a ranger. Assist your DK while he tanks, nope....its literally a cluster of healing, attacking, and healing some more while you try to kite in a circle.
The skills system is a complete mess, offering slash? crit? accuracy? to use your skill points on? Isn't that what your character points already do? not a fan...of this...not going to even go into the "how to obtain skills"
The worst part of the game for me? was the Dark Knight mechanics/party system. I mean this is game killer. Reloading the saved files 10x because your DK simply is not smart enough to do anything other than die. He stands two miles away while you are running away from the fight. Healing two characters at once (perhaps there's a better way to heal later in the game or I may not know of) from the drop potion icon.
My final thoughts? perhaps if you went a warrior/warrior combination it might be more enjoyable. I went wizard with a warrior DK. Some people on the forums mentions archerDK/warrior. I got it on sale, for a couple bucks, even at 5 bucks its not bad for a old school game if you are capable of dealing with bad mechanics