If you want a summary of a book please please go find one written by a human.The amount of stuff I've seen people quote from AI that is just straight up wrong makes my scholarly side weep.

Any answer AI gives you is a mess of stuff written by other people. Doing the extra work of reading stuff by actual humans will give you much better insights than just reading what an AI that doesn't actually understand it says.

And if you are giving an opionion based on an AI summary, you are not giving your opinion of the book as you've not read it. Why not just say "I haven't read it"?