I would always check the listing before I use a restaurant for Aadvantage dining purposes. Several of my favorite restaurants seemed to have disappeared off the list without any "leaving soon" warning. Otherwise I do find the miles usually post in a timely manner and the one time they didn't a quick email straightened it out. But I haven't used it much this year, in fact, trying to get in 6 "dines" before the end of the year so as not to lose my higher credit.
So may have to stop by some places just for a good cup of hot chocolate!