I'm binge watching this on ITVX -- the free streaming service associated with UK terrestrial broadcaster ITV. I just got to the end of the first episode and wanted to write an early review because the first episode was just so wonderful.
Joanne Froggatt provides a wonderfully restrained central performance. Despite not having the appropriate PPE -- because the central authorities have deemed it not essential -- she soldiers on.
The use of Boris Johnson -- the Prime Minister at the time -- is also restrained. It would have been easy to have included all his ignorant and ill-judged comments, but a few well-chosen clips are sufficient to damn him.
The only very minor niggle I have with this is that the font used for the onscreen text is very hard to read -- it's quite small and all uppercase.