I thought it did tie up all the plot strands though I'm greedy and would have loved the final episode to have been 1.5 hours so we could have had a bit more visual satisfaction (I have no objection to a bit of spoonfeeding!) Though I get what posters are saying about it risking detracting from the four main characters. I would have liked to see Faisal's arrest, Rob being charged, Poppy and Florence collected by Jo's parents, Ryan telling Ann her talking-to had resulted in him dobbing Tommy in and I wish Ivan the thug had been arrested at his wedding - it was mentioned so many times! But I'm greedy!
I thought overall the ending was very satisfying and brilliantly acted. I did think initially that it seemed unlikely that TLR did such a volte face and saw the error of his ways and admitted as much to his arch enemy, even though he'd murdered another three people that morning but flicking through a couple of photo albums made him suddenly change his mind. But I was dwelling on it further today (on my way to the dentist!) and my late MIL sprang to mind. She was a sociopath rather than a psychopath but spent her life conniving and upsetting people as much as she could but was adamant it was always their fault, she was right and the victim, had never done anything wrong. We really thought she was genuinely convinced by this. Finally on her deathbed she said to DH that she knew it was her and she wished she hadn't always bee n like that.He was gobsmacked that (a) she admitted it an you 7d (b) expressed contrition, first time for both. I think when your body knows you are dying, truth and remorse can come out unexpectedly! By the time he said all that he was literally dying, badly injured and overdosing.
It also neatly mirrored Ryan's revelation when Ann delivered her home truths.
I agree he'd gone there intending to kill himself (rather than anyone else) but to burn down the house as a final fuck you.
I think the Rob/Faisal storyline conclusion was supposed to imply that Faisal was going to get arrested for the drugs and then his involvement in Jo's death would come out. But Rob would ger his comeuppance anyway because of the grooming stuff on his phone.
I too have been wondering about whether Darius was always going to off TLR or decided later. TLR had done his bit naming the "wrong" murderer so once he was broken out they could dispose of him. Though hiding him at beetroot man's house suggests that wasn't the original plan. Possibly D decided he had to go when he was so insistent about going after Catherine rather than getting out of the country. Or was it when the two thugs got arrested and D decided TLR was an unnecessary complication/risk? Or did D have a mole in the police who knew Ryan had admitted TLR had contaxted him by xbox (as this could, and i think did, lead the police to raid beetroot man's house). Hmmm can't stop wondering!