Guys, do you buy products on AppSumo marketplace?

Hello, everyone! We have published our product #attrack (https://attrack.com/ - time tracker) on AppSumo marketplace with a year deal. Did you buy anything on AppSumo? Is it worth it? We have only a few sales, and thinking does it worth it, or it is a dead channel... If you have any experience with AppSumo Marketplace - please share!