The commercial extension does exactly what is advertised!
The response to my inquiry was immediate, address the problem directly, was followed up until the problem was corrected all within minutes.
The software is easy to install.
Ironically, I am unable to use the extension for the purpose that I purchased it for!
I need to be able to create tags for individual items. Unfortunately, the add-on only provides tags to the category of an item and not the item itself.
If it did, I would give it a 10-star!!!
Even so, I am sure that a lot of people will find it a great add-on to their site.