Instructions aren’t incredibly clear. They do not show the foam pieces when you are trying to install the side panels. The foam prevents the panels from fully covering the sides. The bottom piece where you screw in the bottom portion of the panel into your window sill should also be much longer. Ours was incredibly close to the edge of the window and the screw almost didn’t make it in. The AC unit looks nice and modern, and having an app to control it is very convenient. I don’t think it is as silent as advertised. It kind of sounds like any other AC unit.

I have bought a few cheaper window units thinking they were all the same. When I was never able to get cool, I thought maybe it was just my house, my room, just the way things were. Needless to say, I was wrong. This air conditioner is the best, THE BEST unit I have encountered so far. It gets my room cold. COLD!!! The app is an incredible bonus. Once it really gets hot regularly, this will be invaluable to having my room cold, even before I get home. It's amazing!! Then to top it off, it looks cool too!

It’s my first window air conditioner, so I don’t have anything to compare it to. It is heavy, so I needed to recruit a strong neighbor friend to carry it up the stairs and help place it in the window. We added a block of wood on the inside windowsill to carry the weight, otherwise the entire weight would be carried by a thin vertical piece of plastic that is my vinyl window trim. The design of my window did not allow the thinner edge of the side panel to slide into the window channel, which it appears to be designed to do. I used the provided black foam insulation to compensate for the imperfect fit and fill the gaps. We used only the center window screw and blocks of wood over the top of the window frame to prevent it from opening, so I did not have to screw lots of holes into my vinyl window casing. The internal temperature guage registers cooler than other room thermometers and my Echo device, but I plan to adjust for that by setting a higher temp. The app is simple to use and easy to install. The delivery company paid no attention to the “This Side Up” instructions on the box. It was left on its side when delivered, but so far seems ok. I have it on Eco mode with the fan set to low, so it is really pretty quiet. Great packaging and instructions; the company obviously is making every effort to make this simple for customers, even including a decent pair of scissors to cut the side panels to length. I ordered directly from Windmill and the unit was delivered in two days. The product available on Amazon is not the newer “whispertech” model, and Amazon does not make it known that there is a newer, more efficient, quieter, (more expensive) model available, which is going to make some people unhappy when they find this out. I am using this in an upper level painting studio where I and my paintings have been suffering in over 90 degree heat for at least a few weeks every summer, so I am pretty excited about the improved atmosphere. Also want to add that I really appreciate the marketing video of the person in the red outfit, which alone would make me choose this company over others.

As I have entered my senior years ease of installation means a lot. Installation was so easy my wife and i did it and in less than a half hour were sitting in our recliners enjoying the AC. We were stunned to find scissors in the package to adjust the insulation. (Who does that) Best AC unit i ever bought. Would and will buy another unit.

I had the best experience with Windmill, they answered all of my questions and were very prompt in getting back to me. Installation was amazing due to their recommendation through TaskRabbit, and my new unit is everything I hoped it would be. Thank you, Windmill!

Absolutely love! Everything from ease of ordering, speedy delivery & quality. My AC was actually stolen soon after FedEx delivered inside front door & left in lobby. Windmill customer service went above & beyond to help me replace it. Thank you! Will definitely be buying my next AC from you.

The customer service is top ace. My AC was malfunctioning and wouldn’t stay on even though it was just in ‘Cool’ mode and I submitted a ticket to get the issue resolved. My guess is this was a known malfunction that could happen, so they ended up replacing my AC on the house. Couldn’t ask for better service. Would recommend to anyone.

Received the Windmill AC, installation was easy. Unfortunately, the compressor was not working. Contacted customer service (Lisbeth) who walked me through a few troubleshooting steps. Confirmed the compressor was bad and I received a new unit 2 days later. New unit works great! Best customer service I ever dealt with. And the AC unit, looks as good as it works. Joe Hauser

I just installed my second Windmill which is as good-looking and functional as the first. I love that the AC shoots the air up so it is not blowing directly on you but creates a flow of cool air that keeps the entire room pleasant. The support staff was knowledgeable, responsive and super nice.

I can’t say enough about my new Windmill Whispertech AC unit. First, for a window unit, it’s incredibly quiet! But also, ordering and shipping were easy and efficient. I really appreciate good customer service, and Windmill’s has been top notch. Additionally, I’m very happy with the ease of installation and the app is quite useful. I never thought I’d say this because it’s an AC, but it actually looks great! It’s very aesthetic and looks good in my living room. If you are looking for an efficient, quiet, good looking air conditioner, Windmill is the way to go. Worth every bit of the price.