Yay! Thanks OP. SPOILERS (I know but have been burnt before )
What I liked - Neil Patrick Harris's performance - the bit where he spoke of being worried that mould had been the cause - the whole thing was just delivered so well, so understated, so fragile: I sobbed so hard DS checked I was okay. He nailed the accent, nailed the character.
The Jill character - based on RTD's friend who played her mother in this - the scene at the end where she goes to sit with a stranger who has no visitors and holds his hand, giving him the vital sense of being held/touched - that again was beautifully done, the stillness, the expression saying everything. Really well executed. Had me in bits.
Keeley Hawes - the complexity of that character (the mums in general were the fill gamut from Welsh loving ally to burn all his things and never speak of it) was interestingly written: I knew from the timeline the son was not going to make it. Some of those who did by some miracle survive to 96 often had survivors' guilt. Ritchie had been in denial, not got his test result, had been with HIV for a while - but the mother's reaction was a tour de force from KH. I could understand the initial confusion/denial/anger that she had been kept in the dark. I could understand the jealousy and resentment towards Jill, even though it was unfair/ill-placed. I could understand the territorial claim/wanting her own time with him/solace from childhood memories. But what she did was unforgivable and reprehensible.
As soon as he asked about his friend, she should have given access and as a mother, I still cannot get my head round it.
I gather that at least part of that story happened to Jill in real life and yes, RTD did do him justice.
There were also small roles, with small moments, that I thought were well done: the agent (I do know the actress but have momentarily forgotten her name) who walks away, having given money to Ritchie's friends to see him. That was a scene-stealer. Just one second, where she has the beginning of a tear in her eye, then pulls herself together - incredible acting, says nothing and everything in one moment as you know she has been through it so many times with so many lost clients and clients who have 'gone home.'
RTD did not get the plaudits (emmys, bafta nods) I wanted for Years and Years (especially that scene - you know the one) nor did Ann Reid, but I am hoping he and the cast get the proper recognition for this.