I really enjoyed the first episode, but we never got back to watching it after the second. I don't even remember it being that much worse, it just felt very different in terms of atmosphere and what it was trying to do that I remember losing some interest. So the rest of it is good?

The Netflix show Something Bad is Going to Happen was very similar. The first episode is among the creepiest I've ever seen on television, even compared to other straight horror shows. As the series goes on, it changes very much from that initial episode, though, into something else. Doesn't mean it's bad later, just different.