I've been running with a rare-quality Tiny Harvester as the mechanical member of my team, but I'm getting really tired of it. The third-slot skill misses so much it's virtually worthless, and if I grind the little guy all the way to 20 I can . . . replace it with a two-turns-delayed heal. Oh joy.
Who do you turn to for robot love? I'm sort of eyeing my Darkmoon Tonk or Zeppelin, but if there's something higher-level worth hunting down, that would be less grindy.