I was thrilled to find a small size fan that hugs the ceiling for a tiny sunroom. 
The first one arrived and neither I nor an electrician could get it to work, online sleuthing pointed to a bad part in the fan. Wayfair sent me a replacement super quickly and the second fan works perfectly. It’s super silent and puts out great air. I’ve bought Minka Aire fans before and will continue to, they have the quietest motors.