Works great!! A must have to quiet down the printer tremendously. Surprisingly, no longer hear the whines of the stepper motors especially at night when everyone in the household are asleep. The most audible sounds are now coming from the hotend fan and the power supply fan, but tolerable. Sounds of the fans sound like soft white noise. It does seem as though my Ender 3 PRO operates more smoothly after installing the 1.1.5 Silent Board. Installation is not bad; take the time doing so, don't rush it. Creality did glue each of the connections pretty good so it'll take a bit of time to take them out. All the wiring connectors and connections on the board are labeled so it'll be hard to make a mistake. Take a picture of the original board and wiring before uninstalling that and then installing the new 1.1.5 Silent Board while referring to picture you take.