Please no need to answer quickly, take the time to need to make a complete, thorough answer.

What are the Pros and Cons of Quantitative Easing?

Resources to help you answering:

https://www.ft.com/content/70e176ef-9ab2-391c-8b03-31b4b7cc234b

https://www.wsj.com/articles/ecbs-weidmann-no-immediate-need-for-quantitative-easing-1423767022?alg=y

https://www.ft.com/content/08f93276-8521-11e4-bb63-00144feabdc0

https://www.bruegel.org/2018/11/euro-area-sovereign-bond-holdings-an-update-on-the-impact-of-quantitative-easing/

https://voxeu.org/content/ecb-s-bond-buying-programme-was-flop-and-s-perilous-euro-area

https://www.economist.com/finance-and-economics/2018/12/13/the-ecb-halts-quantitative-easing

https://www.project-syndicate.org/commentary/ecb-quantitative-easing-economic-political-impact-by-stefan-gerlach-2019-01?barrier=accesspaylog