Using the Brizo Kintsu Single-Handle Bidet Faucet is easy. Just turn the single handle to adjust the water temperature and flow. When installing, make sure it's a single hole installation as recommended. For the metal pop - up drain, use it to control the water drainage. As for maintenance, clean the faucet regularly with a soft cloth and mild soap to keep its shiny look. Avoid using abrasive cleaners as they may scratch the solid brass surface. If you notice any issues with the smooth operation, it might be related to the ceramic cartridge, but that's rare. In general, with proper use and care, this faucet will serve you well for a long time.