Haven't scratched the surface of advanced industrial yet, I only have 4 lvl 2, I guess the 'secrets' are tied to the lvl 3s. The addition of martial plots is a godsend, it's harder to upgrade them but the defense value is worth it (along with bonus artillery on some of those). Ammo plant is also great (but a little OP). Seeing a commercial clinic being built when you're about to die is the best. I'm letting the game decide which plots are built, with some exceptions : when starting a new settlement I build the water/power industrial plots (from an addon) but those are too OP so once the settlement is 'running' I destroy them and place the adequate tools. It's also entirely customizable through the holotape so if you don't like a system (dynamic needs, upgrades.) you can tweak it as you wish. I usually avoid abusing the system, too OP on a survival beginning (the first 10-15 levels), but then you can really have fun. I use it in addition to the Horizon survival overhaul so things may vary depending on which mods you use.
