I've just called and s/w my step mum and she said there were no resort costs to pay. The only thing they opted for was the full clean of their aprtment halfway during their stay. This included all the beds being changed, fresh towels, extra toiletries and dishwasher stuff etc. This cost $30 plus tax which was about $1.99. I believe it was optional and you could pick and choose what you wanted if anything.
She also said that there were shuttles to all the parks but they weren't regular and they left once in the morning and returned once at night. Also there is a big
Walmart nearby which is where they went to do their shopping and they said it was cheaper than Publix.