Really got hooked from the first 10 minutes of episode 1 and my attention was held for the rest of the series. And the way certain things in the swamp thing mythos were handled were amazingly produced and you could really tell everyone involved gave this show everything they could.
I'm just waiting for someone with a brain at DC to wake up and say "this was way better than we initially thought and whoever cancelled this no longer works for us, and those last 3 episodes for season 1 are back in production". This isn't likely to happen but hey I can dream can't I?
In conclusion, you should at least watch the first episode, and see if it peaked your curiosity.