[...] am thrilled with the improvement in design compared with decade-older models.This timer is very quiet when switching on and off, which can be important if you keep it somewhere you plan to sleep. It's also a breeze to program, and simple to manually switch the device on and off by rotating the wheel. The normal on/off behavior will resume after manually switching the device.At the price I paid, there's no reason not to buy one for each device you'd like on a timer. The only caveat is that this only operates on two-prong devices. If you want to automatically power on your computer for instance (after telling your BIOS to always auto power on after "power failure,") you'll need to find a three-prong timer.