Using this Brizo Levoir Sensori Volume Control Cross Trim is easy. First, make sure you've ordered the rough separately as it's not included. Install it on a wall with a thickness of up to 3 1/4'. You can start using it once it's properly installed. Keep in mind that the recommended working pressure is between 45 - 80 psi, so adjust your water system accordingly. For maintenance, clean it regularly with a soft cloth. Since it's made of durable brass, it should last a long time. But avoid using abrasive cleaners as they may damage the finish. Enjoy the luxury and functionality this trim brings to your bathroom!