Yes, I feel there is a certain deja vu/replay going on here.... .
The Janet and John series were the first learn-to-read in school, in the UK 1950s and 1960s. (So I was was being sarcastic re Wyndham, (as Karsa Orlong would get the reference, I would think )
I find Wyndham’s writing style is very dated, and after reading Chocky and Trouble with Lichen I think that the ideas are very interesting (especially in Trouble with Lichen, and the possibility of reducing the ageing process, very apt in these days), but I find some of his characters are odd. It is mostly terribly middle class, but some of them (Cockney working class characters in TWL) were almost parodied, it just made me cringe. I know now that Wyndham novels are not my cup of tea, and I fully admit that SF is not my genre either. I seem to have hit a raw nerve with criticising Wyndham’s work, but hey, that’s great to discuss and disagree here! .