I am surprised to hear about the batch download issues from MARSHA to the PMS. I have made changes hours before arrival and/or new reservations (sometimes as little as 1 hour) and the hotel front desk always seems to have the current information. So as a batch system, it seems to have pretty frequent run intervals. Maybe it depends on the particular PMS software the property is using. Is there more than one available within each Marriott brand? I am curious....

--Jon

P.S. Maybe I have just been lucky....