In order to HELP you better understand the benefits of Sitecore, here are some of the platform key features: 

• Personalized CUSTOMER Data: Everything about customers, from their interactions to behaviours to data, is tracked and stored in order to provide insights to help the team deepen engagement and increase revenue.
• Sitecore Experience Database (xDB): By integrating all of your customer experience data (including data from CRM and non-Sitecore-based systems), the Sitecore xDB creates a single store for the entire experience. Finally, you can see the entire journey of every individual customer all in one place (single repository).
• Sitecore Experience Profile (xP): When xDB collects customer experience data, Sitecore XP creates an individual profile of each customer. The information in these profiles will help you to better understand your customers, such as what products they buy, what they click on, and how long they spend on your website.
• Multi-language and Multi-Site Content SUPPORT: Expanding globally brings many challenges, but delivering a consistent brand experience to new customers and employees is among the most crucial. Sitecore provides multilingual support to help you reduce your time-to-market and stay competitive, wherever you are. 
• Marketing automation: Marketers can easily build automation campaigns that deliver real-time, automated responses in response to the actions visitors TAKE on a site. For example, when a customer completes a purchase, an automated response email expressing appreciation for the purchase is sent.
• Sitecore Federated Experience Manager (FXM): Wouldn't it be great if you didn't have to switch all your websites to Sitecore? Sitecore FXM lets you extend certain Sitecore features to non-Sitecore sites, ensuring that your customers have a seamless, positive experience across all of your websites (and ensuring accurate customer data is captured).