I have been a Brand Ambassador for a long time and have been through a lot of different experience. We are not celebrities but yes our audience "Members" do know us.
We are like a different set of users, who have max out the devices potencies. We represent the public at the user level and become a channel for the Brand at the same time, to get to the public what Brand gas to offer and -
This mix is one of the best feeling about being a Brand Ambassador!
We get a lot of services and products (not free) as a privileged user but it cames with it's own responsibility of sharing important feedback and being an ideal user.
It's not just one but a lot about being a Brand Ambassador and it's not easy but fun!