For many years LimeSurvey is the best free open source survey system, but it still lacks many features like detailed reporting, participant result at the end of the survey and also charting which is an important part of any survey system

I hope this could be implemented soon.

Thanks,

Most of the advanced LimeSurvey users use R for their reporting. Participant result at the end of the survey is already available (but could be improved) so as charting.