@randometc This in no way contributes to your question but it reminded me that I only very recently learned that 'table stakes' means the opposite of what I thought.
In vague answer to the question, in the spirit of MVP, I'd err on the side of high-as-possible availability, , detailed-as-possble documentation, few-as-possible (and release-numbered) features.
I appreciate these are probably the least helpful things you'll get back!