I have Isa Browns. They are the only breed I have had, so I cannot compare to other breeds. I find the very friendly, they follow me everywhere. They are excellent layers - for the last week I have had an egg every day from each of them. They did not stop laying in winter either. They are very common in the UK as a "starter hen" as they are docile and easy to raise.
I have never tried to hatch mine. Hope this helps.
They are best layers avaible of dark brown eggs. My 3 have laid 100% all this year. Very tame. If you breed them they will lose the sex-linkage. They should still be very good layers Mine lay jumbo eggs.
They are wonderful chickens! I have an unheated coop, insulated with straw. Mine laid all winter long, even during that month of 20-30* below temps. They are so funny and smart! You will love them. Very easy to handle.