In regards to Antigonidai - actually the Alternative Economy just spices things up, but does not modify the only strategy they have - expand ASAP or die
Just started the campaign with them and in around 10-12 turns took Epirus (Apollonia), Aetolian League, Athens and will take Sparta in 1 turn. With current limited experience, I think the mod makes 2 biggest changes - army composition for player (you need to use basic units) and AI armies quantity, both of which feel great.
First - there is no money for even a medium quality army (at least for Antigonidai), so I am forced to roll with basics, most of which I believe I never ever used before, since there were units with better units with higher price, but still affordable). Now I have 3k in bank, 6k income (only 1 full army and just took Athens which contributed 3.5k to income), and my army is Pezoi (semi-naked swordsmen), Akontistai (levy peltasts), Levy Slingers, Levy Archers, cheapest Missle Cav and 3 units of Chalkaspides. So really I have only 4 "regular" combat units - general and 3 phalanxes, and just was able to afford that in last 2 turns without going into negative.
Second - AI would compose its troops based on "real" money it has / should have, and not spam 1-2 full stacks. I went with around 2-3 turns between taking each new city in one grand battle, and AI had limited armies (of low-medium quality, as they should, with same economy as me) - Epirus had 10-12 units, Aetolians 16-17, Athens 19 and Sparta has around 12.
With all that said - I want to see how it goes once I encounter bigger + wealthier fractions and see how AI composes its armies, plus reacts to loss of defeated stacks, but overall - thank you,
@Kam, mod feels great and heavily changed the standard strategies to those more logical and which "feel right".