I like it so far. It's slow, but not Walking Dead slow. I actually like the main character a lot and, unless they take it in another direction, it seems like they're turning Common into more and more of a badass. The Swede definitely is one, but it hasn't become apparent why yet. There has to be a reason that everyone is so scared of that dude.
Pretty sure I've seen more zombies in Hell on Wheels. And they would have given up on looking for that girl within an hour, if they bothered at all.