Great insights. Beside content i wanted to mention that you product should impress your customers and leave feelings which they want to share with friends.

Content should to be useful and be aligned with UI/UX.

Especially if you ate early stage startup focus on your product and content around it.

Use content to tell your brand story which is supplied with product pictures or team photo. This combination will give to your business authenticity and people love it.

Combine your product with usability,SEO and UI/UX. I call it killed juice!