The only drawback, and reason for 4 instead of 5 points is the lack of description of programming. The included manual refers to the specifications of the drive manufacturer, but this is difficult when it is already installed for years and no records are available.
In my Internet search I found a guide in which the programming has been described with an existing hand transmitter. When that did not work, I sat down with the manufacturer (summer) directly un was told that this method of programming does not work anymore (for older models was possible) but only the programming directly to the receiver, so the drive itself. This then worked but immediately and the problem was solved.
My conclusion therefore: recommendable product, better guidance required
04.02.2015 - Addition:
I got the Fernbedinung now buy again and am draufgekommen that programming from one station to the same type works very well, apparently not only between different broadcasters type, or at least in older models.