First of all I want to mention that I am convinced of the Rollotron equipment thoroughly. I bought this because its predecessor has now almost 20 years after it quits. Amazingly in the really heavy roller shutter is installed. The installation of the new device is simple and straightforward. Even the setting of the end is very simple. It runs quietly and the Soft Start feature makes it even more enjoyable. It is a pity that from the description on Amazon is not clear how the times are to programming. In the old I was able to set a clock and the time when to hazards. In this model, I have the morning at 7am to program the time for opening and in the evening at 22 o'clock, the time for closing. After he does this automatically. Unfortunately, the drive is installed with my parents in the home. So changing times is to be there and set the appropriate time. Had I known that before, I would have bought another model. For this reason, only 3 stars.