The problem I ran into, which has prevented me from using this component is that the component will not send any mail out :-( I have all of the required fields filled correctly and have tried other addresses, but no luck. Obviously this is not a system wide problem because many other people are not having this problem. But I have not been able to find a viable solution on any of the website forums this seems to be a dead end. When I see a new version out I will try it again.
Bottom line? You should try it (with Captcha!) and if it works, I think you are in great shape. If it doesn't, don't knock yourself out I am sure a fix will be found.
Be sue to use the example content code the author includes which you see after you have installed the bot. It made the entire concept perfectly clear.