I've been very lucky! I brought eggs to incubate right before my coturnix female decided to brood and hatch her own eggs. I'm just curious given the choice which would you prefer? I was very happy and feel privileged to watch my female doing the process but I can understand why people incubate more often than not (which has been said to be the reason natural broodiness has been bred out of coturnix quail) Comparing my experience of the two: I had eleven eggs and so did my female. I have nine chicks alive and well. She has six. We both lost one to pasty butt. We both had one stuck in the egg. I helped the incubated one and it survived. Hers I left for a day and a half and it died. I was going to help but as this was mamas chicks I was leaving it to nature more than my incubated chicks. Me female had two duds. I had one dud. One of mamas chicks got trampled in the nest too. So I think my success rate is higher. My incubated chicks are friendly and still like being petted (so far) and I feel will know me and be great adults to have. My mamas chicks do want to be friendly - coming over to see my hand but mama soon calls them away and they are wriggly and difficult to hold compared to my incubated chicks who are used to hands. My incubated chicks are not very explorative of different foods. They are eating tonnes of chick crumb and growing fast! In comparison my females chicks are more eager to try bugs and meal worms as well as chick crumb because mama shows them the bugs. I guess it's obvious incubated chicks will be more tame so I must say if I want a new flock I would incubate rather than have mama brood again. It's a shame as I enjoyed my mama sitting her nest but I just feel the end result is better when incubated.