My team (5 devs, 10 people total on the product) currently doesn't use any incident response-specific tooling. We have a Confluence SOP for incident response, a page template for RCAs, an #incident-response slack channel, and Zoom but no specific tooling. Just yesterday someone recommended Kintaba/incident.io/OpsGenie/etc, but I don't know if that's overkill for our team.
At what point do you think a tool like yours is necessary or worthwhile, as opposed to using generic tools?