Bane wasn't too bad and I didn't play the original Crusaders, but rather Wizardry Gold which was an "enhanced" version of Crusaders. The main prioblem I found, was that I felt the game was too overbalanced in favor of the opposition in some areas. For example, the final Battle on level 8 of Crypt Isle is, if you get a bad roll of the dice, nearly unwinnable even with a very high level party.If you get a bad roll and the DS gets more than 2 Kui'Sa-Ka minions your party will be toast as they have 75% (average) paralyze with each hit and they rarely miss. If he only gets 1 or 2, you can beat him - 3 or more, forget it! It's random.
I usually play "Iron Man" rules - no saving except on exit and a dead party=game over. I once got all the way to that battle with a level 29 party and he got 4 or those guys - I didn;t stand a chance . . after the first round my entire party was paralyzed.
It kinda turned me off.