It's great to cause you literally have no idea what to expect. The amount of travelling involved in these playoffs and the completely different atmospheres/crowds is also great.
This was one of the best playoff matches I have recollection of watching, Australia-Iran in 1997. First leg was a 1-1 draw in Tehran, Australia needed a win or 0-0 draw to advance. Up 2-0 till 15 minutes to go and Iran ties it in the space of 4 minutes to shock them at home.
They hyped the shyt out of the Bosnich save at the 2 hour mark
Interview with the Iranian player at the end was bitter as fack. Couldnt even say thanks breh?
