I ordered this less than three weeks ago and it arrived yesterday in the U.S.. I plugged it into the socket under the front cover of my Mr. Cool 24K BTU mini-split air handler. The module WiFi SSID appeared immediately, the password allowed me to select the primary WiFi in the room and set the password. From there it was quickly discovered by HomeAssistant as an ESPHome device and when accepted, it dropped right into my Overview and seems to work perfectly. Well done! Shipped quickly, very reasonably priced, easy setup, works as intended.