They're open 8:30-5:00 Monday - Friday, I know this only because I called and had to interrogate the receptionist. Nearly asking for the hours was not enough.
When I arrived today at about 11:00 the lights were off, also it's located in a building with a different sign, I'm not actually sure how anyone finds this place. When I walked in a gentleman doing nothing ignore me. The receptionist who was with a customer didn't even look at over and no one bothered to turn the lights on. I lasted about another 30 seconds before leaving.
I won't be back.