The Premium/LE's drop targets make the game a bit more satisfying, imo. It's nice to be able to see what you still need to hit to close quickly as the game plays fast. Shooting around the orbit into the katana is also a bit more satisfying than the pro shot.
I played the Pro locally here before I ordered my premium and it also seems like they fixed the katana ramp a bit in later production. At home, I hit 60% or so of the shots, it easier to hit if the ball is moving quickly as compared to stopping it on the flipper.
Overall, I really like the game.