I played a few games this weekend some small and a couple larger ones and quite honestly had quite a bit of fun.
The trick was my opponent and I agreed ahead of time what we were bringing, x number of heroes with x number of wounds, x number of wounds of infantry etc.
If my opponent brought a monster I brought one or a couple of war machines and every game was close, so balance is pretty easy if you can play a friendly game. Sure you plop down 10 dragons vs my infantry, I personally will shake your hand and go find someone who wants to play a GAME not just win something.
There is some tactical depth to that requires a shift in thinking. Picking which unit to attack with in combat is extremely important when you have 4-5 to chose from. You might want to use your hero before he gets attacked himself, or maybe focus on one of his hardest hitting units to weaken them before they go as your opponent goes next.
Randomizing who goes first each round caught me off guard in one of my games, I sent my mounted general out after a lone wizard. Well my opponent got 2 turns in a row and not only blasted him with magic was able to move close enough to shoot him down completely with nothing I could do. This changes things dramatically.
I think tournament organizers will easily find a way to balance the game, personally I am enjoying it as is and are even painting up some minis that I picked up that looked cool that are useful now who would have never seen a table in 8th. If anyone wants to give it a try let m e know I'll be at Imperial Outpost on Saturday with my Dark Elves (a good mix of infantry, shooting, cavalry, war machines, and monsters so we can decide on a good matchup) and will also be picking up a boxed set since I like the look of the chaos minis, Sigmarites seem OK, Im not totally sold on them.