Having a pros/cons page vis-a-vis alternatives that was honest and thorough is something Hashicorp always did well, to their credit. You should, too. It earns trust.
One of my past employers specifically declined to write up this while trying to sell into a crowded space like SI aims to. In my case I really got the stinkeye for asking about it (how we compare, and do we document that publicly anywhere) during my first few weeks. It definitely left a sour taste for me.