The Upside to the Changes
Many are saying that this will help eliminate spam. Basically, results that are spammy and do not apply directly to the search query will not be included in the returned results.It also means that brands will have an even easier time than ever before to “push-down” negative content that relates to their brand. Good for the brand, not necessarily good for the consumer.
The Downside to the Changes
The obvious downside is that this change creates the potential for one site to dominate the results. If you own the website that is the one doing the dominating, you don’t have much to complain about. However, if you are the owner of another website competing for that keyword phrase, you will likely find it impossible to climb back up to the first page.