20 minutes door to door (from leaving the door of the flight from Madrid to Doha, to arriving at the door of the flight from Doha to Johannesburg. We travelled in Business and were met on arrival in Doha by a QR lady with a board showing our names. We all walked very rapidly to the screening area, were screened and then got into a buggy with this lady to the departure gate. Throughout she was on the walkie-talkie liaising with the buggy driver and the departure gate staff. We were the last to board but also managed a glass of champagne each prior to taking off.