And I have used joomla for clients and I have had no problems with that. It all comes down to preference
As for the cobrowse and such, I am fairly sure it is mostly broken right now and only works in a few setups. If you can, hold out for v3, it should have something that works
Ninjazz: Please leave the dead topics (anything that hasn't been posted on for over a month) alone. There will be no zombie threads while I am watching!