I have 3 years of dedicated code review experience for a large company with 30 developers. As a code reviewer, I shared best practice knowledge, made optimization suggestions, spotted logic and hard errors, and more. For a look into a few of the coding practices I follow, please take a look at my accepted solution to a CodersClan code review request: https://www.codersclan.net/ticket/864. My username there is telescope0606.