I would expect a better quality for a commercial component.
This component is really not flexible, it's really hard to customize, i'm editing the code inside and is really scaring. I think the authors have to update their knowledge of html and basic css, (for example you should use an id attribute just one time for each page, else you should use a class.. this is very annoying to fix).
It's full of javascript and nice transition effects, but honestly that is useless. Some of javascript files missed by default installation and i placed it manually.
Categories management really sucks.

If you are looking for a component that does a good job, lightweight, accessible and flexible, well this is NOT for you.