And even if there were, what good would that do? They would be mistakes, no likely to duplicated at a random other Hampton, maybe not even at the same Hampton.

In other words, you'd need to balance any reports of it working against reports of it not working at Hamptons. (But since most people assume it's not going to work at most Hamptons, presumably fairly few people try to force an unnecessary incidental spend at Hamptons, and thus no data points are generated either way.)