I used this product to automate my tomato greenhouse with Raspberry Pi 3B+. It is very easy to use, it has many features that are useful in automation of projects like mine. The only problem I have was when using Raspberry pi3B+, there were some issues related to power supply that made me worry about its reliability but after solving these problems everything went well. The great thing about this device is that you can easily control your project from anywhere around the world thanks to internet connection.It is also cheap so we could afford buying more than one if needed.