The pro's is that you can customize the look and output without being a techie. The cons might be that each time you add a category, all fields have to be updated, but it doesn't take long to do.
The level of support is great! When I needed some guidance about something and emailed the team, they responded within less than 8 hours with the solution I was looking for.
Very easy to deploy and to customize. The functionality is beautifully designed and presented so that users intuitively know what to do.
I used this extension to set up a world-wide touring network for 5star establishments.
It is VERY easy to use for me with an intermediate skill level with Joomla and high skill level with web development in general.
A big thank you to the guys at 6T for making this wonderful extension.