I was thoroughly gripped after the first episode and the first few were very good. This probably just exasperated the downhill slide in the second half of the series. I'm used to movies/TV series adapted from Stephen King novels having below par endings compared to his books but this started deteriorating from before halfway and it took me four attempts to watch the final episode - I had lost all interest in anything that was happening and didn't care about anyone by then. What a terrible waste.