I agree the lasers are awesome! Freakin lasers man!!!!
The light show on the prem/LE is amazing. It engulfs you into the theme and gives the game a lot of personality. I like that I can glance at the apron and know if a mission is still running while in mb and more importantly easily identify if double scoring is active.
The pro is great for the gameplay; but if you want the full ST experience, it's LE(prem?) or bust.