it's always helpful when, if you don't just post in your original topic, that you link to that topic ...
Buyers backed out--
What happened between ~ July 11 and Aug 5? You had said this agent sent an extension to mid-October, without being clear of it to you. I guess the extension was never signed, until later - like near July 31 (when perhaps your original agreement expired?)
The communication with THIS agent has certainly been lacking what is reasonable to expect. I don't know what kind of appointment/feedback system was used before ShowingTime. But yes, you can be automatically notified of all appointments, and have all feedback released directly to you when the showing agent provides it.