I flew with RYR a few times from Baden-Baden (which they refer to as Karlsruhe-Baden) and SXB, I didn't find the staff to be rude or even incompetent. What I didn't like is simply the way they run their operation, the way they pay some of their staff peanuts and the way they acted when my final flight with them was delayed. Therefore I have exercised my right as a consumer not to use them, I now choose to use other airlines which cost me more money but I believe, and this is borne out from experience, that I'm buying a superior product.
Like most things in life you get what you pay for.