A very handy machine

Have noted with great pleasure that the machine in reception and also tried the same multiple.
Bin but not at all satisfied with the thread tension, sometimes it works and then not again. At
some materials I had to try a lot before the Nähbild was satisfactory.
Maybe I make a mistake and it could be anything, as it was shown in the advertisement.
I'll stay tuned further, if necessary, I have to go call the service number.