We successfully sailed standby earlier this month on Nieuw Statendam, however we didn't receive confirmation until 8pm Friday (1/5) night for a 3pm Sunday (1/7) departure.
Also be aware that on the standby program, you're INELIGIBLE for ANY onboard credit offers. We were denied stockholders, military, first responder and AARP OBC. In my opinion, the uncertainty, the extreme last minute rush, the loss of onboard credits, and the lack of information from Holland just makes this a NO GO for us in the future.