QuickSupport, TV Host or Normal TV install?

Hi all,

In a previous job we used full install of Teamviewer on support staff machines and we pushed out the Teamviewer Host module out via GPO and an MSI file with a settings file.

I know I will be using TV host and QuickSupport but i assume that it would also be OK to deploy the full version of TV on end users machines?
Also does anyone know if only the licensed IT support staff can initiate a meeting? I was wondering if some of our normal staff that normally only would use TV in order to get remote IT support could launch a team viewer meeting with their clients?