I started with the free version of this application and found it to not be of much use. However, it does show everything you could do with the PRO version, so I risked the $77 USD and bought the extension.
NOW, I am no Joomla genius - but I am no slouch either. I found the application to be a bit tough to figure out at first and with not much documentation I had little choice but to slog through it and figure out what did what by trial and error. Once I got the hang of it though, it does exactly what it says it does.
The best part about this extension is its creator, Carsten. I emailed Carsten for help and HE ACTUALLY REPLIED. Not once, but several times until my issue (use with Rocket Theme Gantry Templates) was resolved. For me, this is unheard of in the extension world. Extension builders, take note - SUPPORT YOUR PRODUCTS.
My report - good extension, excellent support. Great job.