I like that it allows you do build custom connectors for almost any type of data source, which can be used in many different ways (eCommerce integration with 3rd party services). The UI could use some improvement - they are doing great things there but sometimes their approach feels very "enterprise" instead of being user friendly! We're solving our problems by connecting multiple sources together so we needed something flexible enough as well easy to get started using right away since this was an MVP project at first place :).