This is a great nicely designed Air conditioner. Its quiet and does the job. Also it looks nice in the window and that's a bonus. Its also very easy to install! WIndmill has a great kit containing every thing you need including scissors!
My favorite part is the connection to my google assistant, where I can ask google to turn the windmill on or off or set it a certain temp.
I did contact customer support on a question, and they were great to work with a really helpful.
Nice Air conditioner, Nice company. You won't be sorry if you buy one of these!!