I already had an automatic 42-liter bin of another brand that has passed away after a year and a half. I bought it by chance as it was larger diameter than my old. At the reception (fast), nice surprise, the outer coating is insensitive to fingerprints, the sheet is of great thickness, the lid is light. 3 LR20 batteries are sufficient for its operation only (6 in my old trash). In use, I am fully satisfied, because of the batteries 3, the discharge opening is wide and the cover is light. The bags 50 liters are perfectly filled, the diameter of the trash being ideal. In short, I highly recommend especially as the operation is relatively quiet compared to my old model and that the sensors are effective.
