Just caught up with this. I was keen to watch as I live nearby so have spent every episode location spotting. DS found it very amusing that all the kids at the school are wearing his school tie (a boys school) - must have been what the local supplier had most of left in stock! And the main character, a single parent public servant, can afford to live in one of the nicest houses in Heysham, right in the clifftop overlooking the bay (hmm).
I could overlook that though as artistic licence is needed when finding locations.
This has tried hard to be Broadchurch set in Morecambe (which they've made look more glam than it is, depressingly). But they haven't done the research into police procedures which is what's really interrupted my suspension of disbelief. Two probable runaways in Morecambe have the whole force out searching, an FLO who is simultaneously investigating the case, conducting searches, and running round arresting people all over the shop? As for how she treated Nick in hospital to get info out of him...
One thing that bugged me all the way through was who is playing Jess, the mum. She looked familiar and I could picture her playing an unhappy character before, but couldn't place her at all. Just checked, she was Kelly in This England - which I just finished rewatching last week ffs!