Helium10 is the only tool that I would ever use for Amazon. Not only does the entire tool suite do exactly what you would expect and more, but Helium10 offers a lot of guides to how to become an expert in the tools. Helium10 offers also a lot of knowledge of how to become a successful seller on Amazon, they give webinars and share interesting posts on socialmedia. If that were not enough, the few times that I have needed customer service, they have responded quickly, very kindly and given expert service. I highly recommend Helium10 as the only tool needed for Amazon.