I wouldn't call it more complicated in the way of being much harder to understand...perhaps in the "more involved" meaning of the word. You need to be "on it" all the time or your shots don't come out at all. It is rather unforgiving of user error. The technical things that really matter (understanding light and metering, for example) are the same across all formats. You don't have to worry about the exposure compensation unless you are focusing on a close subject, and even then, the formula is simple (one act of subtraction, one act of division and one act of multiplication), and there are ways (including gizmos) that let you avoid plugging numbers while working.