Originally Posted by pushmyredbutton

There should be a consolidated thread for this, but:

Yes, you can use the LH lounge as a *G and you'll have access to the marginally better Senator section. If your PIT flight lands in Terminal C, then you can hop on the bus at gate 71 and ask to be dropped of at B3 so you won't have to clear security again until you get back to C.

If you land in A, you'll need to clear security at B which can be a slow and annoying process. Given the state of the clubs in C, if you're determined to stay at the airport, the LH lounge is your best option (or SAS next door if you get bored). With 9 hours, you're honestly better off heading to the city, though.