TZ is my all-time favorite pin (well it swaps the #1 spot with STTNG from time to time). Love the theme, layout, loaded with features and things to do. You can mod it out endlessly to keep it fresh. It's just an all-around great game and not all games need to have lightning flow to be great. This one is a permanent member of my collection for sure, it’s been there for 2.5 years now at still is the most played.
The must have mods:
German Clock board w/blue housing
Gumballs and gumball lights
Piano Mod (forgot this one)
The rest are per taste but, those are musts IMO.