Been going every year since Heinz opened and we are the biggest jinx in sports history. It's comical - back in I think 2014, Tampa came to Heinz and beat the Steelers in the last minute. The Bucs finished 2-14 that year, yet won in Pittsburgh with their backup QB playing. THAT was a brutal loss. (and a VERY long drive back east to Lancaster)
Never saw a Steelers game at 3 Rivers, but I used to make weekend trips there to see the Buccos when i was younger. I'm not a Pirates fan but it was so easy to get great seats out there.