I like how Seller Tools has saved me time! Before, I never posted things to Twitter, Facebook, or Flickr, because I just didn't have the extra time! Since using Seller Tools, I have seen traffic to my store double, if not triple!
It is great that I can automate posts and publish to both my FB page and sub page. I also like the fact that I can go in to "History" and check that my posts have been executed.