Now Ferris, as well as Ireland teammates Andrew Trimble and Rory Best, will face an Edinburgh side that boasts a host of Scottish internationals at Lansdowne Road in the last four.
And Ferris believes a place in the final at Twickenham is well within his side's grasp.
"Our defence won it - I don't think they had a line break in the whole game and as a team we were outstanding in that area," said Ferris.
"It was a great team effort and we've put out a statement to European rugby.
"The Munster boys came out at us and with the crowd behind them we knew it was going to be a long afternoon but we made a terrific start.
"Edinburgh have showed they are a good side and it's going to be tough, but we're looking forward to it."