Using this shower set is easy. First, install it on the wall using the included accessories. Connect the water inlet to your water supply. You can adjust the height of the shower rail according to your needs. To use the shower, simply turn on the water and choose from the three functions - massage, rainfall, or a combination of both. When not in use, make sure to turn off the water properly. For maintenance, regularly wipe the shower head and rail with a soft cloth to keep them clean. Avoid using abrasive cleaners as they may damage the black finish. If there are any blockages in the shower head, you can soak it in a mild vinegar solution for a few hours and then rinse it thoroughly. This will help keep the water flow smooth. Remember, this product has a 10 - year warranty, so if you have any issues, you can contact the customer service.