Quoted from shelby1000:
That actually sounds pretty cool. I'm thinking of Metallica Premium and I would probably want that feature for it as long as it doesn't cause any vibration damage to the cabinet or components over time. I guess that would be the only concern that I have but I guess these games are designed for that.
I love them as well especially when used creatively with the lighting/music. It can significantly add to the immersion of the theme.
As long as you buy a Stern shaker from somebody like pinball life, you'll be absolutely fine. The other aftermarket ones can be overly strong and require modification to tame them.