Well, i came here to pretty much say everything Fax already said. So it's a big Nay for me. I especially hate the flavor of Vancian spellcasting. It seems very counter-intuitive to be able to memorize the same thing 3 times then forget one but still remember the other 2. I don't care how well Vance may have rationalized it in his books, it's not something that someone new to D&D will pick up and say "that makes sense."