In the IAH C Club now (~6:30pm local time on a Wednesday) -- on my way to GRU (C7 departure) in J -- club is probably a little >50% "full" based on number of seats with humans vs. unoccupied/luggage/etc.
Little disappointed that none of the Polaris recognition mentioned in other clubs and the food selection is entirely Ritz products with a little basket of Lorna Dune -- this includes Ritz products I've never heard of will definitely avoid in the future ("Ritz Chips")