I have opted into this every stay at the HH San Jose/Silicon Valley since it was implemented in late March. I just completed my 6th stay since then and it has posted correctly only twice I have told the front desk upon check-in, put out the hang tag, etc. It's not that nothing posts for me, it's that the wrong number of nights post. All my stays are 3 or 4 nights, so 500 or 750 points.

Here's their tally
Stay 1 - 3 nights - 500 posted - correct
Stay 2 - 4 nights - 250 posted - wrong
Stay 3 - 3 nights - 500 posted - correct
Stay 4 - 4 nights - 500 posted - wrong
Stay 5 - 4 nights - 500 posted - wrong
Stay 6 - 3 nights - 250 posted - wrong

I got the first wrong posting corrected by my concierge. The second and third wrong postings were corrected by the Twitter team. I just finished the 6th stay yesterday, so now I need to contact someone about that. I walked to the hotel about stay 4 and they said everything was done correctly on their side and it is a WoH problem and to contact them.

When this was piloted years ago at an HP I frequented, the points almost never posted without manual intervention. The one time I tried it at an Aloft, they didn't post. When I've done it at a Courtyard, it does seem to generally post correctly.

Really quite annoyed at yet another failed implementation of this by Hyatt. I hate having to chase down 250 or 500 points, but it's the principal of the thing at this point