Works well as intended, however it is lacking a lot of features given it is trying to be a smart home switch. Firstly, it is only possible to control this via Xiaomi's MiHome app. This prevents this working with other products, or services such as IFTTT. Secondly, it is a simple switch for all the sockets - its not possible to turn off only one socket, its either all on or off. Also, it only has localisation settings for China and not other countries as this would be much more helpful.
My suggestions for your next switch would be to include more services - IFTTT, IoTiviTy/Thread compliance, security; more localisation efforts - electricity costs for different countries, etc; and lastly to have separate switches for each individual socket.