I wholeheartedly concur with these two that if you have the room to designate a main nest box, partitioning is a great system for isolating hens where they are at. Isolation is the key as it really improves overall success in hatching. Doing so in the main coop really saves extra work on your part (ETA or at least coop space...you do have to let them in/out once a day). Many people fear doing so as it seems cruel to "lock" a hen inside, but she isn't moving off the nest and likes it dark, needing to get up only once a day to eat/drink/poo.
The only thing left to consider is what to do when the chicks hatch and how the chicks will do in the flock. A simple solution, and safest for chicks, is to move momma and chicks to a grow out area, especially if you have predator problems such as hawks (something I struggle with). Hens easily move once their chicks are hatched, to pretty much any area you locate them to.
I also use banties for my main broodies, who get no respect in the flock and would get hazed every time they were reintroduced back (that was a lot of hazing as they were brooding 3 to 4 times a year), for me it was simply easiest to create a broody hutch and grow out run so that my broodies live, brood, and grow out chicks safely in one place. I only move chicks when they are old enough to join the flock as pullets, and less tempting for hawks.
But if I had large fowl girls brooding, and plentiful barnyard eggs (rather than expensive purchased breeder eggs), and plenty of nest boxes, I would consider leaving them in the main coops with partitions for brooding isolation, then letting the chicks integrate into the flock and let nature take its course (knowing I could lose a chick or two here or there).
LofMc
Planning on trying it as soon as I have time! I know one of my bantams at least could get respect in the larger flock. When she's broody, she gets grumpy. At one point she attacked my rooster and he was surprised--he ran. After several similar encounters the poor rooster began attacking my boot. He had to take it out on something. They don't enjoy their position in the pecking order being threatened.
I would move the chicks once they are hatched. They are valuable eggs to me, from my Marans & Ameraucana pens that are not laying. I only have 1 Marans egg collected and it looks like I won't be getting more so I'm going to put it under her.