I like Adobe Acrobat Connect. The Professional version has a lot of advantages for enterprise conferencing use. I even appear as a frequent guest speaker on Adobe’s public educational webinar series.
But fair is fair, and it is time for Adobe to face up to a glaring deficiency in its offering. Technical support for the product is woeful.
Mind you, what is available is pretty good. The online documentation for how to accomplish common tasks is clear and well written. The problem comes when that documentation doesn’t satisfy your needs as a user.