I was curious about the topic for a long time know. Is it really worth switching? What are the benefits if so? I mean why would one even bother when the original version of Magento is still used by millions? Well the truth is Magento 2 performs much faster than its predecessors. The reduced page loading time meets the expectations of eager visitors on the website/webshop and that's not easy, especially if you are talking about mass traffic on holidays. Even a half second of delay can make a difference in the shopping experience.
Here you can read more about the details and why you should consider the migration.