Bullshit. The Loco is part of the AirMax product family and is incompatible with the Unifi Controller.

These things run perfectly fine in standalone mode. The UISP Controller would be possible but the only advantages are bulk management and centralized logging.

I own four of the 5AC Loco for 5 years in standalone mode without a problem.

I work at an MSP so we oversee a lot of network devices.

Switches die proportionally more often compared to other network equipment.

From my experience, switches are the most likely part of your network to die a sudden death, especially after a reboot or power outage.

Check if there’s warranty on it.