I've only done the first mission and the park protest mission. So far, I am enjoying the game. It's pretty simple and straight forward but does require tactical thinking in order to use your characters effectively.
This is probably one of my favorite versions of Bunker. While my goal is still to get him into an optimal position for Turret Mode, I know I'm not going to stay in Turret mode the whole map, and so swtiching between his modes and deciding if starting him off in Operational or Turret Mode for optimum AP use is actually fun.
I kind of wish the other characters were like that. I actually haven't used Tachyon, Wraith, or my custom character's secondary stances much. The only reason to use them is if I'm fighting opponents weak to those damage types, but most of the time, it's better to use my ranged attacks. Maybe, it's just because I haven't played much of the game, but I kind of wish I had more motivation to switch stances like Bunker.