I just flew back from Shanghai through ORD on Saturday and arrived around 5pm to the H/K lounge. It wasn't overly crowded (it was a Saturday) but I was able to get a shower without a wait (In DFW I routinely have to wait 45 minutes to an hour for a shower to be available). I was expecting a zoo but it wasn't anywhere near that. I'm sure business heavy times it can be much more crazy.

For me I wouldn't pay for the club out of my own cash but my company refunds it to those of us who travel more than 20 round trips per year. I'm glad I have it but it's sometimes very hard to find an outlet or an outlet that isn't so worn out your plug won't stay plugged in and some have better food than others but really I just like it for a little quieter place to sit and somewhat more comfortable place to wait for the plane.