When it comes to a money back guarantee at Bid4Papers, you should know that you won't pay writer before your paper is finished. That way, you'll know whether the paper needs more work, as well as whether the writer is doing a good job.
We cannot find a clear revision policy at the website, which definitely isn't helpful. However, the company says that they do provide revisions, whatever that means. Maybe you get free revisions, maybe you pay for them, who knows. Clearly, we don't think that's professional.
This site offers an array of writing services, but only for the college level. However, not all writers deliver good quality papers, since not all Bid4Papers.com writers are adequate for a certain subject. That's why you should carefully choose a writer.
Some clients are happy with the paper they've got, while others are disappointed. So, we guess that you cannot know for sure whether you'll find a good writer, and there's no other way to find that out, then placing an order. After all, this service isn't a bad one, so maybe it's worth trying.