To add fuel to Sat1's fire, the Captain was furious on my last AB flight to the point that he announced to everyone his disatisfaction with the ground handling and apologised for the disruption it was causing - no one to op the bridge on arrival, then no stairs appeared either so the pax were very late disembarking, the capt said they had twice requested boarding to start but no one came, then as we sat on board waiting for bags that hadn't been loaded the power became disconnected and we sat in the dark for about 10 mins, the temp drops very quickly! Eventually got away 90+ mins late. I observed staff in the terminal arguing over which a/c was which too ('This is the Tegel' 'No, thats the Tegel, this is the Hanover' ' No, this is Nuremberg, Hanover is on 22(?)' ), which really didn't give a good impression.