5 stars: Enjoy the ease to control the Dyson fan and purifier and the temperature & air quality inside and outside. Now that WIFI is stronger there is no more interruption with connection. Reset of the filter (carbon) is only available through the application. Client should be made aware of this when changing the filters. During cold weather the heater makes the whole 'den' confortable. Love it !
4 stars: Good but daily graph could be better. The airflow speed lines sometimes have spaces but there's still a reading. I don't quite understand what's going on. It only shows 6:00 and 18:00. Not sure where exactly are these times on the line. Cannot interact at all. Would be nice to be able to select a point on the graph and it says the time and reading for that point.
4 stars: December 2020 update, the address Google support (on/off), which is good. They brought back the swipe function for multiple Dyson units. Generally the app is okay, but as mentioned by other users the temperature is not in real time, so nursery may be cold, but when I set the heat it won't heat up because it shows non real-time temperature. I then have to turn it up higher. Not good.
3 stars: Doesn't stay connected to wifi. Massive bug where whenever you move it to another room, it gets stuck in a loop where it can't reconnect to the wifi. The when purpose of getting this model was it's WiFi connectivity.. this is a software issue, and on reading the reviews, it's been going on for over a year - ...