You can adjust the intensity. For parquet, I would set it to medium. Basically, Roborock recognises the floors. You can only get ptz rags as microfibre. I wouldn't put any agents in it. It does fine and yes you can download Xiaomi Home or Roborock APP. You can control everything via APP and you will always be informed when the sensors need to be cleaned or when you have to change the best ones. I am very satisfied especially when you compare the suction power with iRobot. No chance for iRobit or other devices.