For comparison, if you look to your right, there are three recent comment gadgets. The first is Last Comments,
Another glaring difference is how Recent Comments and the _FeedView handle markup in comment text--they both systematically delete all tags in the comment before displaying them, but they also count those tags as characters even though visitors are not shown the internal HTML. Last Comments, however, takes a consistent approach; it shows comments the way they look on the blog and it only counts text characters in determining the comment preview length, so if you ask it to show 50 characters, it shows 50 characters every time as they appear in the actual comment.
As always, feedback is appreciated. If you notice that Last Comments is not working or not working the way you think it should, feel free to leave a comment and let me know the problem or your suggestion and I will look into it.