I've always loved the models, and I was impressed with the demo game I played at Adepticon. I have a minor nit, which is that 'lower-is-better' on the dice rolls, but the strength of the rest of the rules easily makes up for that personal and minor hang-up. I like the fact that the profile cards have a reasonable number of abilities. Just enough to get your head around the full squad you bring to the table.
One thing I don't like is their update strategy for their rules. They plan to update the rules every year. That strategy places too much weight on the players to keep up with the deltas from one year to the next. Everyone is more likely to come to the table with different rulesets in their heads. I would rather they just stabilize the rules. Maybe that recipe doesn't work either, though, since the game might end up with 3 years of imbalances, to be replaced by 3 years of different imbalances, a la 40K.