I know this is not the location for PClub reviews, but the PClub in termnial A is small and cozy, but nice.
It didn't have a bathroom inside it from what I could see but it was far nicer than the Miami Delta Crown Room. For the A terminal it is like stepping into another world that is actually modern.

A isn't horrible, but nothing great hard to believe mainlines ever used that thing! On the plus side it is small and you can get from the PClub to anywhere in the terminal in about 2-3 minutes max even walking slow.

This is about IAH