I've had Ancona LF. They're fairly hard to come by!
I loved mine and would be very happy to have more. They are basically spotty Leghorns in looks and temperment, lay lovely chalky white eggs and given the choice eat insects and very little feed. I never had a problem with combs. Mine were shut in at night with quite a lot of other birds so possibly they kept warm enough that way.
In my experience they are independent rather than flighty but they'll happily feed from your hand if you let them come to you rather than chasing them around.
Lucky, lucky you, I say! I may have to cadge some fertile eggs off you next year...