I think TWD premium will go down as one of the best games of this era. The addition of the walker bombs provides the player with a way to earn complete safety in a game that can be otherwise difficult and unforgiving, which fits in with the theme really well.
Lyman's rules are balanced, and there are a pretty wide variety of ways to score points. When playing against others, you're rarely out of the game, even if you're behind, because the ruleset allows for really big one shot jackpots with the inlane X multipliers -- IF you can survive the risk of building it up.
I've been lucky in that my left ramp hasn't caused me any problems. I think the premium's left ramp does require more accurate shooting than the ramp on the pro.
Oh, and it's also really fun to goof around, turn off the high scores, set the walkers to always be on for every shot, and then compete with your friends to try and reach LMS; first one who does, wins!