Main issue was that user interface and options are hard to get head around at beginning.
If there was a "How to Get Started" intro video, or step by step guide, would reduce the lower reviews, I'll bet.
1. Go to Ads Manager, Add "New Ads", at least 2
1b. Use %link% code, to enable click tracking.
1c. Tick enable click tracking, paste the URL for ad.
2. Go to Groups Manager, Add "New Group", add Title
2b. At bottom, select ads to include in this group. Save the Group
3. Notice "Code" for this group, on Group Manager page, 1st record.
3b. Copy this short-code, example: [adrotate group="1"]
4. Paste that into one of your pages where you would like the ad to be displayed. Save the page. View Page.
A quick example of how to insert more than one ad, then rotate them. Will be very very helpful to anybody who first installs that plugin.
Just my suggestion is all.