Dear all, We have prepared a short (5 min) anonymous survey for users of Kwant. Please consider helping us by filling it out and do not hesitate to spread the word to others who might not be on this list. The survey is linked from the top of http://kwant-project.org/. It can be also accessed directly at http://kwant-project.org/2015-survey. Thanks, your feedback is highly appreciated. Christoph on behalf of the authors of Kwant