Well I wanted to enter bangerang's contest so I did a playtest with Aquilla. So here is goes:
My army-
Aquilla
Mohican River Tribe X 2
Brave Arrow
Darrack Ambershard
500 Points
Vs.
Marcus Decimus
Me-burg-sa
Roman Archers X 3
Roman Legionairs X 2
Ne-Gok-Sa
505
My opponent moved his archers up first but their short range kept them from taking a shot. However, this put me in prime condition to take height and kill all of them with my height advantaged Mohican River Trib.
The first half of the game was pretty much a shoot out. The archers tried to volley me, but being in Aquilla's hypnotic aura they could only attack her and my d20 was on fire for concealment. Meanwhile, the River Tribe was mowing everything down.
I took out two squads of roman, Me-burg-sa, with only a squad of Mohicans thanks to the aura. After finishing off my opponents range he moved Ne-Gok-Sa up to try and mind shackle Aquilla. I gambled and let him engage, allowing me to move Darrack up for a sneak attack. On my second turn I flew away and put five poison counters on NGS.
The range was easy, but the romans and Marcus started taking revenge when they engaged my army. I was that Aquilla value had dropped to nothing without a range threat, so I flew her into enemy territory and put five poison markers on Marcus.
When the game ended Ne-Gok-Sa had two lives left and one poison counter on him, Marcus had two wounds and four poison counters on him, and there were six romans left.
Overal, Aquilla was very fun, but against a melee army she is overpriced. However, the metagame change for range (currently the strongest element in the game) is signficant.
If I was to play the game again, I would have taken another squad of Mohicans instead of Darrack and then taken some melee screen: rats, WoA, etc.
Aquilla's ability to disrupt range is intense and her poison ability is great for heroes, but against anything else she will not get here points. Would I take here to a tournament? Yes. She would rock against 4th and 10th which are very commen in the Utah tournament scene, but something like Orcs, Greenscale warrios, or Knights would eat this up for lunch.
I would say she is priced about right. The disruption against range makes her a valid 250 point characert and the risk of not facing range makes her a very risky choice.