I did notice the loss of Magic Missiles, especially as a long time BG player. But my only real complaint is the fact a ton of spells are restricted to 'Combat Only'. Personally I would like those to be available when an enemy is sighted, so I can scout out a target, buff up and attack it.
But that is just my personal preference, I do like the challenge of it, but sometimes it really does bug me that I can SEE the enemy RIGHT there but I can prepare to fight them. . . which defies logic. . .
Durance: 'I'll wait until they are trying to stab you Eloth, then I'll put the Armor of Faith on you. . . until then, just stand there and look pretty!'