Even though I am a long-time Age of Wonders player, using mods is something I'm not super experienced with, so this managed to be my first mod to EVER use for this game.
I have to say I'm very pleased; I honestly think this may be what I start using in my own games from now on.
There are quite a few changes to units, some of which are in their stats and many of which are in their abilities as they increase in skill; especially for making level 4 units more powerful and unstoppable just by having empty fortified cities. I haven't been able to experience much of this as I just started using the mod and have only read about the majority of the changes so far.
One of my favourite changes includes the change to the Goblin Bomber at silver level gaining a Call Flames ability (which would only be attainable using an arena or the Warmonger spell).
Speaking of SPELLS... Many of the lower level combat spells have been lowered in casting cost which makes spell-based leader and hero builds possible to use throughout the game. Many of the spells such as flame arrow only have a cost of 1 now which means your hero can be useful even with Spell Casting I and low stats.
Please visit my Age of Wonders page at https://intronerdedliving.blogspot.com/p/age-of-wonders.html for more content including reviews, singleplayer, and multiplayer games.