I have flown A300b4 and A310 they are conventional like B737. If you fly AB FBW for long you will have to start all over again to fly conventional aircraft. Because Airbus FBW is flight path stable and not speed stable. B737 NG and B777 although FBW both are speed stable and may be similar to fly. But not 320 and 737. Hands off AB maintains 1g through speed and power changes. It holds bank and angle of attack no holding off bank required. You make change and leave it alone. Any time you move the stick you are giving a command to either roll or pitch. If you fly 320 you can fly 330 or 380 it behaves same way. Only differences a five day or ten day course. With it's protections and ECAM life is very simple. When something fails in may be 737 you grab the yoke but in Airbus leave the stick first then think. AF447 they didn't do that. It would have held the flight path.