I like that it has its own tiny hydro electric generator to run the LED lights, thermometer and timer.The braided lines were too cheap quality so I replaced them with high quality steel ones before installing the panel.You have to memorize the controls as the tiny symbols are impossible to read in the shower with water spraying in your eyes. In a week or so, you should have your favorite settings memorized.The instructions are barely in English, so you better know what you're doing if you plan on installing this yourself without a plumber. I hired a pro to do the lines and fittings and shut off valves, then, just hang it on the wall, shove the hoses through the two holes in the wall that you have to cut out, and screw the two hoses into the hot and cold lines.