Well the first three were oversold, weren't they? As though they resembled a masterful combination of Isaac Asimov, J D Ballard and Roald Dahl. In reality, they didn't have anything remarkable to say nor did they occupy some new place in science fiction writing (or broadcasting).
But I think they were worth filming, especially the third one set mostly in a gym.
The first of the new series was a gently sad story of bereavement and coping. The pay-off wasn't to my liking but, again, I prefer to see channels invest in the risk of once-off dramas so I won't condemn it from a height.