Right out of the box, it was very easy to set up.  You remove the plastic from the filter, which is located in the bottom of the device.  It's easy to twist off the cap to change the filter.  The display is easy to read and shows different colors for air quality levels.  I notice when I start cooking in my kitchen, the color indicator turns red and goes back up to blue about 20 minutes post cooking.  It shows me this purifer is really working to clean my air.  I love that it covers 1200 square feet of space.  It has a touch screen that is sleek and classy. And my favorite of all, it is so quiet.  We have ours in the living room, close to our television and I forget it's even there. You can't hear a thing until the air quality drops and it ramps up a bit, but even when it is working its hardest to purify the air, it is quiet.  I love this so much!