Craft CMS was developed by creators of Expression Engine. It is a propriety licensed CMS.
KUWARE team is well versed in designing and developing with Craft. Craft is designed with a clear focus of providing good but limited interface for managing content effectively.
Many Agencies prefer Craft over WordPress. KUWARE Team really does not have any preference for one over the other. Development in Craft requires extra customization than WordPress, mainly due to unavailability of large number of starter themes and plug-ins. This does impact the cost for development in Craft, making it slightly a bit more expensive (about 15-20% more than WordPress).