I loved asimovs charachters and dialogue, what didnt you like? Dialogues in asimov are especially great, its how battles happen in the books.
From my part I find the narrative device of smoking&mansplaining a … curious … choice. But never the less the books are surprisingly good!
cf the BBC Radio production of Foundation which was pretty good given it was largely just people talking and some Radiophonic Workshop sound effects.
(It was available on archive.org a couple of years back, may still be.)
The problem is, in a society where space travel is commonplace, nobody will talk like that.
Imagine someone in our world buying an iPhone, and walking out, saying "Oh how great that we have a technology to instantly talk to anyone else in the world! I have the technology right here on my hand, isn't it mind blowing?"