I stuck with Traces to the end but tbh I was a bit bored with it.
Currently 5 episodes into The Serpent which I am really enjoying. I intended to watch 1 episode last night and ended up sitting up half the night watching 'just one more'. I've read reviews saying it's a bit slow but I quite like that about it. Tahar Rahim is excellent.
I'm currently working my way through a lot of things on iplayer that I have been saying I am going to watch for ages.