This is an often overlooked reason to buy Stellar Cyber: that MSSPs need to have the ability to comply with a wide array of changing regulations and mandates.
This may not be the right place to say this but it's wonderful to see how you have succeeded in your career. You have come a long way since the days when we were at Amherst Central. Best wishes from WNY
Pretty much everything (98%) are possible in today's NG SIEM be it SPLUNK, QRADAR, LOG RHYTHM except IDS and Sandbox. Every SIEM vendor has pretty much does every feature called out here, including static correlation, Advanced Correlation, AI/ML based baseline & analytics, Automation, Response, MITRE & Kill Chain based out of the box dashboards, Threat Hunting. Not able to understand what is different than NXT SIEM ? If only IDS & Sandbox are different ? to call this as XDR ?