Is puzzle's and opening's are good are not?

I don't know if the opening or the puzzle is good?

Yes.

No.

Maybe, look at the table of contents of Learn to Play Chess Like a Boss (2019) by GM Patrick Wolff.
https://www.amazon.com/Learn-Play-Chess-Like-Boss/dp/1465483810?asin=1465483810&revisionId=&format=4&depth=1

Hahahaha ))) Now he began to hide his advertisement for the hidden message.