The Comment Moderation module gives an alternative view to your approval queue with all actions directly available from the comment moderation view. This helps to analyse comments one by one, take action and move on to the next comment in the queue. You can also much easier browse through your comments without having to go back to the approval queue all the time.
For Drupal administrators with comment spam frustrations, this module can help to reduce the overhead of moderation. You are pretty much back in control again and you are no longer at the mercy of whoever enjoys to abuse your freedom of speech for their own profit.