I'm not so sure. I have a hulk LE with 500+ plays with no signs of any of these issues. That demonstrates that new parts assembled correctly can work. On this game, ball times are long so 500 plays is comparible usage to 1500 on say acdc. So its fair to say that QC sucked on the machine you received. It's not fair to say new parts wouldn't solve the problem. If your presentation were true, every single avengers machine would be falling apart. They aren't.

The voice over work is excellent. Sounds like the actors used on avengers: earths mightiest heroes and many if the actors used in the pinball fx marvel tables. These voices sound very accurate and very nostalgic to any true avengers fan that isn't just a fan of the movie. Because they went this route, they weren't limited to clips of the movie. They were able to add some very cool and funny call outs for each character - some of the best come from hulk. I have a lot of people over that play the game and the voice overs hasn't been one of the common complaints.