I have had this purifier for around 2 months, and I am SO happy with the results! I have two cats, am a candle/incense hoarder, and make resin art, so I was putting this purifier to work. It's large, but fits in nicely with any space, and is easy to move from room to room (be sure to remove the plastic on the filter before turning starting it for the first time). I have it running in my work space, where I work on my art and have a litter box. The PlasmaPro helps keep my air fresh and rid of any harmful chemicals/stinky odors. It's awesome seeing the color indicator turn from red (bad quality) to yellow to green and then blue (great quality). I also love the app and that I can manage the product when I am away. This is my first ever purifier and I am so happy I chose this one!