Although their bot is not working properly for getting followers and likes after Instagram changed its algorithm, I still use their schedule service for my posts. It is more convenient than Instagram's Facebook schedule tool because I don't need to sign in to Facebook to use Insatzood schedule post service.
It also publishes my posts automatically on time, unlike many scheduling services out there, which only remind you of the time you must publish a post (which an alarm clock can do for free).
The only flaw I can detect in it is that the program sometimes stops working and I need to refresh the page. Other than that, everything works perfectly.
Dear Karel
Thanks for getting in touch.
Yes, we are really sorry about the promotion service, but we are doing our best to not disappoint you.
We really appreciate your attitude.