Different users have had different rates of success so far. Some have massive headaches, some have it perfect. Most of the problems seem to be related to incorrect PHP settings/permissions, strange or 'restrictive' server configurations, or otherwise exotic attributes of their webpage - such as Joomla templates breaking JoComment stylings (or vice-versa).
Best I can suggest is to try it yourself and see. Make a backup/mirror of your live site and install it somewhere else - possibly locally with
XAMPP
- and you can do extensive testing there to see if it'll work with your live site well without breaking anything.
EDIT: You can use the JoomlaPack extension for Backup/Restore of Joomla installations, it's great for this type of mirror task. See the thread where I talk about it here -
compojoom.com/forum/6-bug-report/4882-ma...age-link-broken.html
