I think I found the gig you are referring to. I'm going to initially say that its probably not a good idea because anything that's so easy most likely doesn't work. However at less than $10 dollars, you can test it out. Not on your client of course. Pick a different random listing (preferably one that looks dead so as not to affect a real business) and buy the gig, then check what the actual output is. Make your judgement afterwards. My guess is that most, if not all of the pages created never get indexed.