Its a great system, but the support team is shocking. Forum posts asking for help are replied with links to previous issues, which are links to further issues. I felt as if I was going around in circles.
Many unanswered posts with comments that you have to have the version number, PHP version etc before they will answer. Thats not a problem for me, but I do know that some people are lost at this point.
Ive seen people so desperate that they offer cash for help. This is the only extension I have come across that seems desperate for help. I suppose that some (like me) use our sites as income, means that we are at the mercy off those that can assist.
I also suggest you view the admin area before taking the plunge. It looks ancient in design and style so some guesswork is needed.
I took there advice an voted for them... If they didnt treat users like dumb animals, it wouldnt be so bad.