The 400S Smart True HEPA Air Purifier is incredibly easy to install and is feature rich for an IoT device. I love that it is able to be connected to my home automation system and controlled remotely by the free ios application or via voice commands. For the amount of filtration this unit processes it is incredibly quiet. The design is very sleek and modern and it sits nicely in the corner of my living room. Very happy with the air quality filtration here in Southern California it has made a huge difference for my allergies. Absolutely recommend this HEPA Purifier.