I started watching this show a little while back and was tottaly hook after watching the first couple of espisodes. Sometimes the show can get slightly predictable just because you learn to know the actions of the characters and how they respond to situations similar to ones they delt with before hand. I'm only on season three and I'm excited to watch more.
One thing I do recommend, is to just watch it. If you are interested in it. You are going through all this trouble to read reviews anyways. Just watch and decide whether you want to continue watching. Reading reviews won't help you all that much when opinions vary.