Salesforce Commerce Cloud (Demandware), a CMS included within the Salesforce ecosystem

After being bought-over by Salesforce, Demandware has now become Salesforce Commerce Cloud. During the changeover, the CMS integrated the Salesforce ecosystem, thus benefiting from innovative technologies which made the developer so successful. What does this integration mean in concrete terms for a vendor wishing to create their online store via Salesforce Commerce Cloud?

Salesforce Commerce Cloud (Demandware), a CMS included within the Salesforce ecosystem

4600 brands and retailers worldwide are already using Lengow