Graphics are fine. Suitable to the game.

Some people have framerate issues apparently. I don't, so cant help there.

The biggest annoyance is dieing. If you(all) die, the defeat screen takes like 10 seconds for you to be able to choose to play again, and its not tracking checkpoints or save points properly, its forcing you to go back to the start of the mission.

But in co-op, with an instant revive spell that only takes 3 key presses (2 elements and spacebar) having everyone die is uncommon.