I have played way more games on Premiums and just bought a Pro. I probably would have gotten a Premium if I could have, but the Pro was available. So far I do not miss the Premium stuff. I absolutely do not notice the Mechagodzilla rotating targets (although they are definitely super cool). I really like the collapsing building but after my 10th or so game it started getting a little annoying. Still cool, probably worth it. YMMV. I think this all means you can’t go wrong either way.
All that said, the flat character plastics really bother me so they will be replaced.