I tested it by using it, then not using it. The "not" using it was hard. I found it much easier to schedule the posts, then forget about them. I did wish that I could have put more specific information for Etsy teams on Twitter so they would be caught by them better. but the pictures worked extremely well. I found I expanded my target audience using the system, and sold more, which is the bottom line.
Sadly, I was very busy these days offline, and I couldn't use Seller Tools at its full potential. It was helpful on making treasuries and also I liked the favathons. Seller Tools helped me to be active even if I had less time than usual to promote.