The best way to draw your own conclusions about the effect of an automation like RSA is to test it with an experimental campaign, a feature available on both Google and Microsoft Industry Email List advertising platforms. With a test, you can run two variations of a campaign; the control, with only expanded text ads and the test, with responsive search ads also added. At the end of the experiment, you will see if adding RSA had a positive impact or not. When Industry Email List measuring results, remember to focus on key business metrics, such as overall conversions and profitability.
Metrics like CTR are much less useful to focus on and Google Industry Email List is sometimes responsible for touting the benefits of an automation in terms of this metric which only really matters in a PPC world, but not so much in a business board room. By the way, if Industry Email List you need a faster way to monitor tests, take a look at a recent script I shared that puts all of your experiments from across your CM into a single Google spreadsheet where you can quickly see metrics and know when any of your experiments produced a statistically valid answer.
There is a problem with this type of RSA test though… it will only give you a campaign level result. If the campaign with RSAs produced more conversions than the campaign without, you'll continue with RSAs, but you might miss the fact that in some Industry Email List ad groups, RSAs were actually harmful. Or if experience with RSAs loses, you may decide they are bad and stop using them, when they may have generated big gains in a limited set of cases. We could dig deeper into the Industry Email List data and uncover some golden nuggets that would help us further optimize our accounts, although the answer is not to deploy RSAs everywhere.