I'm testing against humans, and I'm really pleased so far.
I stripped it down so almost every unit has just move or attack on a regular winning roll and another special action on the bonus roll. Or on a bonus roll, you can do 2 regular actions. Double bonus is 3 regular actions or one regular and one bonus.
A lot of the tension comes from knowing when to commit to a strategem. You might lose initiative after you give your plans away! So I imagine in high-level play there'll be a lot of fake-outs and feints. Of course, if you roll in the bonus, you can execute a couple moves in succession, really altering the game space.
None of the (now 8 ) classes seem to be OP, and I'm not even sure what the best is. But you can only have 2 units from the same class on your squad of 8...that and the randomness gives me some balance breathing room.
Edit: Ruleset is here: http://www.fantasystrike.com/forums/index.php?threads/evaluate-my-ruleset-competitive-trpg.7220/