I liked it a medium amount. Wasn't fantastic, wasn't bad at all. I can't compare to FireFly because I have the boxed set, but I also have a 4 week old, so, yeah, but Steve got away without knowing who Phillip K. Dick was for a long time, so don't yell at me too much {;0)
I think a wild west setting can be lots of fun. I've gotten one story down in an alternate wild west setting (leans towards fantasy, not sci-fi), and this story did remind me that there is a whole lot of life to explore when choosing a story to tell in a wild west setting.
Are all Nightwalker stories western-ish, or was that just because of the planet? If it was located on say, a planet where cops swarm dead bodies, would that be a non-western planet?
I have a GeekDad shirt also! Same design. Go get one. Get robot t-shirt while you are there too, along with... ok, I wont plug it any more. But I do have one of the robots shirts too, it is really neat.