It’s hard to explain what your startup does.

This resonates with a recent experience. I'm working on a project where the PO is very keen to add integration to all kinds of third party services. This is in order to speed up development and provide simple but flashy features that he'll be better able to sell.

However, normally have a problem: when he comes to me with links to these services, I have great difficulty to see exactly what they do, because all I can find is marketing jargon. Technical documentation is often buried deep within the guts of the site, and I have a hard time seeing if the service is actually worth integrating.