I'll say it simply i'm disapointed. Those submods are very good and i know they are still in beta phase, or trials etc. TA:TW is realeased for only a month so they are still a lot of tweaking to bring in but still, i got bad experiences.
First i feel Rohan and Eriador are too strong with those sub-mods. One times out of 2 rohan kills Isengard in the first 20 turns. Then several turns later in the first 20-30 turns, Sylvan elves kills the OotMM. leaving only Mordor and harad to fight. This litteraly happens in 1 of my games every other. I think its because of the trade thingy, and maybe also the garrison script. evil factions being aggressive they attack the "good", the "good" gets 10x more units with the garrison scripts and then just roll on the "evil".
Eriador is a serious problem if you play High Elves. If you wait 20-30 turns to build up your economy and let the AI gets strong, you encounter 2 problems :
1. risk that Evil gets destroyed as stated above
2. risk that good expand far too fast, i.e. eriador taking ALL rebel settlements around it, leaving for the High Elves to meet victory conditions only one choice : fighting Eriador, which is very sad
The trade sub-mod is good. its always nice to tech fast and build big armies, but it should help the "evil" AI more. It would be coherent with the Lore, as in the begining Sauron and Mordor are not challenged, so they can throw hordes of Gobelins and Snagas onto the "good" powers and at the very least defend themselves.
So yeah i dont know whats causing such imbalance and i'm sure and trust it will get soften and fixed little by little. But for now i'm still trying to start a balanced and fun game to play.
Ps : I play High Elves on VH/VH. Its the third game in a row that before turn 40, Isengard and OotMM get destroyed