We just finished our first tough war since we got level 11 perks, and it made a difference. Our opponent filled all strongholds to the max, and formed 3 defensive coalitions on 5 of their top 20 bases. All our players went with 2 or 3 offensive coalitions. Our coalition troops were very often the last men standing in our attacks. Love the new perk!
There are over 40 level 11 alliances now, and we have fought quite a few of them. We only do 40v40 wars, as must most of the level 11 alliances. Just saying...