I am using this extension since a year almost and I can only recommend it for everyone searching for a free questions-answers component. The support is great, I requested a bug fix for SEF URL's and the team is following up with it promptly. They have placed a huge effort to get this component for us free. Thank you!
Thanks a lot for the review. I am a bit late in updating my component in JED as I am busy upgrading it with new functionlities. I am adding a group system where only a particular group can be allowed to answer and view a question. Its almost nearing completion and will be released in the end of mar 14.