This will be fairly brief, as I am trying to avoid spoilers, which most of the specific things I’d want to talk about would be.
“Based on the novels by Isaac Asimov” they say. I disagree. “Inspired by”, certainly. It contains many themes and story elements from the book. Many character and location names. But it deviates from the source material significantly more than is required by the medium.
Which is not to say that I did not enjoy it. It was very pretty, the story well told, the acting excellent. I think there were some overly-convenient coincidences, but nothing too egregious for television.
Is it Foundation? No. Is it a really good Foundation-inspired series? Yes, it is.