Many advertisers are seeing success with ad extensions, and Vodaphone is one of them.
Ad extensions are becoming an important element in marketers search advertising strategy, with up to a 15% increase in click through rates for a new ad extension that has been added to a search ad, it’s an important finding not to be ignored.
Structured snippets allow audiences to read specific aspects of a brand’s product or services before clicking through to the site. It gives advertisers the chance to add further details to improve relevancy and more information on specific areas that can’t be covered in the text ad description.
See the case study here: https://www.thinkwithgoogle.com/intl/en-gb/case-studies/vodafone-uses-google-adwords-improve-relevancy.html