I am loving loving this product. Ive recently made a feature brick wall in my home and was concerned over the dust particles it would cause. The sensors are quite sensitive and are quick to pick up any changes. I am not the most technically minded so just being able to press a button and have the information displayed is also a bonus. It has made me more aware about having more ventilation in my home and be more select with air fresheners, etc. I haven`t hooked it up to my phone yet but I think I will be even more conscious about the air quality. Its also brilliant for helping you to stop smoking!! Well worth the money.