Unpopular opinion: code review is a big loss of time if done systemically. Could be you some times but for me. It's hard to get a good opinion on others code with just a quick read. Most of the time, the feedbacks are just on the form not on the functionality. If the reviewer is good at coding, the feedback will be good but the time should be better used to produce something else. If the reviewer is less good, the feedback will be useless mist of a the time.