Totally agree with you!!! I just wrote a review yesterday and it's very similar to what you just said.
I would go just a bit easier on the digital love couple episode... Other than that I would say it Verbatim.
My least favourite was by far the crocodile with the killer, that one was not only disappointing for a black mirror ep. but had many narrative holes...
To add to your guinea pig enthusiasm... I'm not sure they see like us, meaning all the 3d, colors and definition.
Let's see what season 5 has for us... hope it goes back into the previous levels of quality. (I could not believe it was the same creator writing all of this)
I heard a rumor season 5 will be one story across all episodes.
Have a good one and welcome to Steemit, been following you in youtube for years.
(If anyone wants to check my Black mirror review in Portuguese here it is:
https://steemit.com/pt/@maxjoy/black-mirror-4o-temporada )