I will say we have some friends that stay there when they come, and they just uber/lyft back and forth, they stay on Marriott points and CC points. I agree with her on this and we are locals, we use uber to get back and forth to the parks even I-drive once in while, if we are meeting friends for cocktails and dinner out. It's just soooo much easier to get around.
As far as the shuttle, and this was before the whole covid mess, that the shuttle doesn't run that often, and I think she said you have to pay for it some how, or be a member or something...