How would you determine that a chat is working well if the user has no alternatives?

If the user has no alternatives to determine that the chat is working well, the following criteria can be used:

• Stability and availability: the chat should not crash, messages should be delivered without delays.
• Responsiveness: server and interface response times should be minimal.
• User experience: no complaints, positive feedback, intuitive interface.
• Usage metrics: high user activity, number of messages sent, session duration.
• Error handling and logging: the system should handle errors correctly and recover quickly.

For example, you can implement monitoring of key metrics (latency, error rate), collect feedback, and analyze logs to ensure that the chat operates stably and meets user needs, even if they have no alternatives.