I've been using it for maybe 2 weeks now. I just completed rewriting my listings. I think I just finished fixing my last 4 listings that still had a couple of problems. All of my other listings are A's. There is a lot of help on writing good listing descriptions on Pinterest. I read many articles and combined the ideas to come up with a format that I'm pleased with. It's a little longer than my other format. I know not everyone reads the listing, but some do. I think it was worth my time. Your listing content does make a difference for your grade. The keyword tool also helps you get more yellow and green keywords. Just click on each of the items on the left to see what each one of them is. That's how I became familiar with each one. There is a lot of information available for free.
I have one question for anyone who can answer it. Do we have the opportunity to connect Instagram and Tumblr to Etsy. Etsyrank keeps track of SEO followers. Also, I have Twitter followers on Etsy, but Etsy rank is only listing my Pinterest followers. Does anyone know why and how I might fix this? Just though I would ask.
Good luck, everyone. I think Etsyrank is a great help!