I thought the end was too abrupt. We know they both died but it felt not quite complete.
Overall I thought it was good but shocking and far too violent - I actually couldn't watch some parts of it.
Agree with the analysis in this thread. Ruben damaged by his father's sexual abuse and left confused and obsessed with being manly. Good call to those who guessed that.
We were confused during the final scene, we weren't sure if he was raping Niall as he didn't seem to be actively beating him. It was only later we realised he had smothered him.
I think the "white" stain on the kilt is meant to suggest Ruben ejaculated but as pointed out on another thread, it's actually a pool of Ruben's blood with light reflected on it. Ruben's trousers are shown done up and clean immediately afterwards.
I thought all the clues and foreshadowing were really good. Including young Mona "you'd better not get me pregnant", Niall to Alby at uni "we're like two parts of the same person" (about Ruben, later referenced in the prison scene about them both being half men) and mum giving Niall the "ceremonial" dagger.
It was quite clever how Niall was initially a victim but also became a villain by episode 5. It was exasperating though how self destructive they both were. Just when anything was going right they sent it tits up again. In the prison scene where they are confessing their truths and bonding/ laughing we kept saying "don't say anything else" but we knew he would.
Things I found rather far fetched which sort of distracted by preposterousness:
A pretty small cast with the same characters popping up over decades. Ruben marrying his teenage girlfriend. Niall partnered with Joanna and then Alby, both of whom he met on the first day of uni. Gus cropping up at school, then at dogging, then at the wedding. Apart from Ava, no significant others in several decades.
Just seemed so unlikely that Ruben would happily assume Baird was his child when he knew he was infertile and that Mona had been unfaithful (which he had believed, hence his attack on Benji).
Niall accidentally getting two women pregnant within months even though he's gay and not interested in women.
Ruben getting a 100k job straight out of prison.
Mona having an affair despite being terrified of Ruben. Then wanting him back when he was still in prison and she could have been safely free. Yes he had charisma but he was an awful violent controlling thug. (I think he said Celeste hooked up with him too after the first prison sentence despite knowing what he had done to Alby.)
Niall being so terrified of Ruben knowing he is gay when just about everyone else knew anyway.
Ruben being so jealous and controlling of Mona during their marriage but quite happy to "share" her in their early relationship.
Ava and their son being happily at the wedding despite the fact that their relationship had ended over him seeing male prostitutes. Ditto Joanna. And Alby wanting to get involved with Niall despite him being a total mess and the reason Alby nearly lost his life, just why? Most people would run a mile from that sort of trouble.
I agree the time lines were very blurry with big time jumps but seemingly nothing much having happened in between. But I suppose they needed to keep the key elements of the plot sharp and the passing of time was necessary due to the prison sentences.
Anyway it made me feel like I've led a very sheltered life and I'm quite happy about that!