Markus 5 Just put in the batteries, and it works - very easy to set up!The sensor always works perfectly, doesn't just open when you pass by or are near it, but only when you actually want it to open by swiping your hand over the sensorIt's big, so 70l trash bag easily fits.It's easy to clean, and looks rather nice, as far as rubbish bins go.Very little smell comes out of it, which is one of the best features (lid is quite firmly on).Had it for several weeks now, still on the first battero, so seems to last quite a bit!