Worst POS experience in my tenured career

In my experience, there has not been a resolution on outstanding tickets opened two years ago during the initial implementation. Simple things like time reporting, creating buttons, and marking items as "unavailable" have issues. The system has a lag when servers log out of checks that prevents them from opening the checks on another terminal without a wait that feels like an eternity in the restaurant industry and with direct impact to the guest. Good luck calling support. Most of my experience involves the person I spoke with having no idea how to fix my issue and having to "escalate the ticket." This escalation process will last weeks, months, and in our case, years with no resolution.