I've watched all except about the last 15 or 20 minutes, I think. But it's taped and I'll get to it. (When I start getting sleepy, no matter how good the show, there's nothing I can do.)
I wasn't exactly disappointed in this performance, but I don't think it was one of the best. I was disappointed that the writers felt the need to "discover" who was driving the car that killed Mrs. Lewis. Sergeant Hathaway's investigative skills notwithstanding, it's just too far-fetched, too-much of a coincidence.
Also, (and this may be due to my using captions) I felt there was an awful lot going on in the very beginning, that I probably missed something, and should start watching all over again. So many characters, I was having trouble keeping them straight. That said, I'll not comment further until I've seen the ending. Perhaps there'll be another Simon Monkford tie-in with the main mystery that will legitimize announcing his part in the car accident.