I hatched chicks in January. So far, they seem very healthy. Nobody's laying yet.
I will say this: having chicks in the front room for months on end suuuuuuuucks. So, if you have a garage or basement or someplace else you can keep the chicks after a couple weeks, it may not be so bad. But, once the chicks get to be 3-4 weeks old, they start to really stink, even if you're cleaning out their brooder box frequently.
I don't think I'd hatch in the winter again if I had a choice, but that's just because I'm sick of my house smelling like a barn, despite my best efforts.