Hi Mike,
I can say with certainty that the Pro version is much more robust than the current free version. 100s of development hours have been poured into the Pro version to ensure it is top notch in terms of compatibility and reliability.
It also has the added benefit of being able to perform push/pull migrations.
I'd be much more comfortable supporting you on the Pro version and to answer your question, yes, we do offer a no questions asked money back guarantee if you have any problems with it.
Cheers,
Chris
