I was surprised when I saw one at the Springfield location last night, it was definitely something fun to do over the abundance of mobile ports and ticket games.
-I have little to zero expectations when it comes to graphics for arcade games, so the up-rez'd 3DS assets actually looked very nice in comparison to most other games present
-The vacuum mechanic feels really good. You can surge if you are sucking for long enough, which gets you bonus gold like in LM2.
-The controller clacks when you suck up coins, which felt like a nice touch. The immersion all around in the cabinet was good, but not overdone (there machine brightens when you use the strobulb, for example)
-You have 3 hearts IIRC. However, hearts take partial damage, so it's not a 3 hits your out sort of scenario. I didn't see any health pickups other than an end of stage bonus I think.
-No new enemies or areas from what I played. The Brain was changed a bit to be more like a traditional light gun style boss, and serves as the boss for the first area.
My dad dropped out a bit before the end of the first area, I played through the factory (second area) until I died. The game overall was leagues better than the ghostbusters arcade game that D&B was advertising (although the best game I played last night would probably have to be Time Crisis 5).
I enjoyed it more than Dark Moon.