I like how easy it was to set up with my team members who are not very familiar with cloud services or programming languages such as python/java etc.
It's also great for those of us without much experience in setting this type of service up because they have provided many tutorials which helped me get started quickly! The only thing i dislike about krakend so far has been their pricing model - we're still working out what our budget will be but from looking at other similar products (such as Apigee) there seems to be some more expensive options available than others. We've used KRAKEN D primarily to integrate into existing applications using python / java APIs where previously we would use SOAP calls via soapUI.