I don't fly the aircraft you stated but I fly 737,what I say will apply to most airliners .First I'd like to explain a few things about the autopilot usage.An airliner pilot has a lot of other works in cockpit during a flying day so instead of actively manuplating with yoke we use the autopilot.(AP) The use of the AP
helps a lot to reduce the workload,provides more passenger comfort,helps fuel save.But I have to add AP flies the airplane,pilot flies the autopilot.
Now during approach,especially in busy airspaces where alot of traffic around you in close distances,alot of radio chatter going on,approach planning of your airplane(not to be high or low than required)while trying not to get closer to traffic infront of you and not to let the traffic behind you catch you,and keeping the track instructed by the ATC,doing briefings and checklists,and etc etc.AP is the most helpful tool to use.(may he rest in piece whoever invented it)
My company policy suggests that we use the AP
until 1000' during good weathers,and until seeing the runway visually in poor conditions.There are times when we once in a while want to have some fun and keep the skills sharp especially during ferry flights(no passengers) where we actually handfly the all approach with no FD
's and AT
's.But in everyday operations we use the AP
mostly.I hope I could be helpful.Regards.WING