The automatic Bauer flush Gurtwickler "Uniroll" replaces a 10 year used EcoRoll Exposed Gurtwickler whose electronics failed now. Installation using the supplied installation instructions are problems with the exception of the first step. Since it is namely remove the gray veneer. I have a while fiddled perplexed until I pried the bottom crack of the cover carefully with a narrow screwdriver. You do not want to make it through to violent use of force something on the delicate plastic piece broken yes. When replacing the beginning disassembled big white plastic wheel, make sure that the ring gear is on the side where there is a vertical metal spindle in the housing. The present in my home Slot for the role corresponds to the standard size, the farmer Gurtwickler is so wide that it had to be pressed gently but firmly as inside. That he has survived without damage. In order their own hands that survive even harmless, you should wear sturdy work gloves for this step. Because the back of the belt winder is very sharp! I am thrilled by the ease of programming and that you have to do no reset, if you want to change the automatic extension and retraction times. It's also nice that you can see in one screen what you have set. And that no additional special tools such as curved staples or plastic hooks to solve the wheel required for installation and programming, as sometimes competing products. The noise is loud but pleasant than with the previously used EcoRoll. The engine of the Bauer-belt winder is adequately dimensioned so that it pulls my small (1.7 square meters), but heavy old blinds harmless high. Only the design of the belt winder Bauer I find something homespun. Meanwhile, I have my second EcoRoll replaced by a farmer Gurtwickler Uniroll. For this price this is an excellent solution