This is next to the Hilton Garden Inn, and across the street from the new HERE Pittsburgh apartment building.

Enter the main entrance and walk past the guard desk.  The elevators are on the right at the back of the hall.  Take an elevator to the third floor.  Exit the elevator and walk straight ahead into suite 300.  The reception desk is to your left.  If you are attending a class, sign in on the iPads on the reception desk.