Been using joomlaComment for over 5-6 months. It's been great but not without issues.
Some issues I have currently are:
1) Administration of comment pages just give a blank
. Been doing without the comment administration. Other pages like set up etc are working fine. 2) One guy keeps hacking the Captcha and boombards the commenting system once in a while.
3) Mail sent only blank body when the comment contains certain character.