Worth every cent. I integrated this easily and seamlessly into an existing website with a dodgy commenting method. Everything was imported flawlessly, and it's been rock-solid ever since.

The front-end looks terrific, with a choice of several different templates. A couple don't seem to parse properly with Firefox 2.0, but the component's developers assure me they're working on this for the next release. Doesn't really matter - there are more than enough fully-functional ones to choose from. Flat and nested commenting is handled nicely, and (for me) the killer feature was being able to display comments by Username rather than Name.

Back-end administration is also slick. You can see all comments in one pane, and moderate any of them. I love the autopublish for registered users.

All in all, a terrific and slick component. You won't be disappointed.