I don't see this as a relevant tool for anyone using Joomla 2.5 or newer, truly. Every single extension on my site is updated and all of them are rated Popular here yet I still face many issues. Once I think everything is working, I come across something else messing up that's directly linked to this extension. Once the extension is off, everything runs perfectly fine.
This extension is to make life more simple, not the other way around. To go into further detail, the security features are lacking. To stay secure year round prepare to pay year round even for large security vulnerabilities.
The thing that gets me are all of the cheaper/free extensions that are equivalent to this one don't have anywhere near as many problems.
I spent a lot of time and effort with this extension, in the end I was able to get everything working and have to say I not only feel as if I completely wasted my time but also feel a lot more appreciation towards some of the other extensions offered here.
It's important to state that the people I spoke with were very professional.