Thank you very much for the fast answers. - A last question:

"Guaranteed Concierge/Executive Club Lounge* access applies to regular hours of operation at Marriott hotels, JW Marriott hotels and Renaissance hotels worldwide. For Marriott hotels, JW Marriott hotels or Renaissance hotels without a Concierge/Executive Club Lounge or if the Lounge is closed, the guest is entitled to receive a free Healthy Start Breakfast, Monday through Friday."

So, at weekends there is no lounge access and no free breakfast for Gold Elite Status members at Marriott Hotels?