If you look at the owners thread, there's a been a lot of discussion about this all ready. Including within the last couple pages. You're going to get an equal amount of people on both sides saying which they prefer, or what's important/missing on each version.

If you have the $$, get the premium.
The pro is fun, and if the extra $$ makes a big difference, you’ll still love your machine, but with a bunch of games on both, the premium is worth the money to me.

Played both, pro is outstanding. I bought a premium as it’s a long term keeper, but the pro is same amount of fun.

Pro has the benefit of the fun as hell right spinner always available to shoot, and less stop and go for Godzilla multiball.

Premium has cool stuff but nothing game changing. Really no wrong choice here!

Both are great games, play both and get which suits you best.

I have played both and to me the extra money for the physical ball lock for Godzilla multiball, Mega Godzilla ball grab and the collapsing tower when dropped one level is a ball diverter again reversing ramps was worth it for me. However I did pay MSRP and not over inflated prices.

I could do without the collapsing bridge IMHO

Had an LE loved it but I am considering coming back with a pro. I don’t really think any of the features add gameplay other than the building diverter

Damn you got rid of your LE that quick?

What did you end up buying after you sold your your Godzilla?

Agreed. Thought the building mech would change gameplay but not really. It's basically just a physical ball lock. One premium I saw would dump all 3 balls sdtm every single time. lol. Bridge just seems to shake around for the most part. Looks cool but does not change gameplay at all. I do like the spinning mecha godzilla mech. It gives you different things to shoot for and more visuals but pro has awesome spinner. Rather have pro that shoots awesome and save $2000-3000. However, premium probably better buy in the end since that is the more desirable version thus more $$$ down the road.