Surveys can be used to discover stuck points, rank the value of different features, receive feedback about user interface aesthetics and get suggestions. They are a valuable tool because they gather qualitative and quantitative data. They also are cost-effective and are an easy way to gather a large amount of data from many users.
Google forms is a wonderful software to use because it provides a clear presentation of the analytics and qualitative aspects of the survey. Using this platform helps the designer uncover areas for improvement.