A tour of the pieces — what your assistant knows, where it answers, and what it can do for a customer.
Your assistant is one thing that shows up in several places. It reads from one knowledge base, follows one set of instructions you write, and can answer on your website, on the phone, over text and on your social accounts. Turning a channel on does not change what it knows; it changes where it can be reached.
Three things decide how good it is, in this order: what you have taught it, what you have told it to do, and which channels you have connected. Almost every "it gave a bad answer" turns out to be the first one.
No. Your assistant will answer from whatever it knows right now. Adding more later improves it immediately — there is no re-launch.
Yes, depending on your plan. Each one has its own knowledge, its own instructions and its own settings. Use the picker at the top of the sidebar to switch between them.