It doesn't take a rocket scientist to figure out why people are saying things like...
Quoted from VisitorQ:
I prefer a game with modes and although AC/DC does have them, it's just not the same as most other games. When you complete a mode you really don't know or feel like you did.
Quoted from PinCrush:
I also prefer modes to have an "ending". I want to beat them, to finish the mode with some sort of fanfare and sense of accomplishment.
Simply put, AC/DC has very few audio cues. Players have relied on audio clues for so many years, they've become part of the background. Something that's expected. A player does something good, the game makes a sound confirming to the player that he has made a good shot. That's how it's always been. Sure, the DMD also gives the players feedback, but the player can't look up very much. Audio cues are way more important. Now that AC/DC has taken most all of them away (or made them extremely subtle), people are confused. Now the only clues are the lights on the playfield.
For everyone, the learning curve on this game is longer. Even good players are taking longer to figure it out. A top 20 player recently told me he's shooting the bell with a backhand more after seeing me do it. And I'm not even a top 500 player. For some players, they will never get used to it. Those folks have to have the audio confirmation or it didn't happen.
To me, this is a good thing on a number of levels. Steve and Lyman have rewritten what a music pin should be. They (music pins) should've always been only about the music. Why on earth did it take this long to figure it out? The longer learning curve is awesome. Great for ops. While I enjoy games like IM and Tron, I figured out strategies for those games relatively quick. I still have a lot to learn on AC/DC and I've spent dozens of hours on both a pro and a premium. Monster learning curve.
People have suggested online for years that games need to 'teach' more to get the video game aged folks more up to speed. Now they've taken away a major tool from the player and people like it. Following this logic, games should get harder and harder in the near future. What if the next game didn't have any sounds OR lights? Can't wait!