One of the biggest criticisms of the feature is that it largely just finds ways to expand your reach, and spend more money, relying heavily on machine learning to generate leads. Yes it can help you generate more leads, but often times with low efficiency in spend. For advertisers without PPC expertise, it really is a great feature, but for 5 figure spend accounts with active management, it is not, and as such, I disabled it. Over the years, the auto applied ad suggestions had instituted a number of changes in the account and which were a contributing factor to the lower than possible return on ad spend that I uncovered in my due diligence. Many of the issues described below were implemented because of this feature.