We are using this unit to supplement our existing central A/C in our Master Bedroom.  It works well, is relatively quite and appears to be quite efficient.  I was able to easily connect the unit to wifi through the Frigidaire app.  One connected, I was able to link to Alexa by enabling the Frigidaire skill.  Now the unit is fully voice controlled by Alexa and remotely controlled through either app when we’re traveling.  Overall very pleased with this unit.