- At what age do the pullets begin to lay on average?
- How do they perform as layers?
- Do they lay as well in winter as they do in summer providing the necessary light but not necessarily heat?
- How do they do in the heat of the summer?
- What size eggs do they give?
- Are they a very noisy breed?
- Anything else I should know about before taking on the breed?
Thanks for your input.
I can't give you much as I have only 2 Partridge Chanteclers and they are from Ideal Poultry, hatched Jun 12. I've never had chickens before so take my information for what little it is worth

Egg laying:
They have light from 4:30 AM until 7:30 AM then again from 3:15 to 5 PM. It is getting dark enough that they are heading in to roost before 4 PM at the moment. No heat.
I still haven't figured out if both are laying. The first started on 11/28 so about 22 weeks. I finally did figure out for sure what color egg she lays but one of the Faverolles lays a similar color egg, MAYBE a bit smaller. I don't have a scale but I would guess on the Medium side of Large though they started Medium. I've given her credit for 24 eggs but that could be high. I would say that even if I have credited her a few to many, she's been laying well. The other finally has some color in her comb and face and for all I know might be responsible for some of the more recent ones.
Noisy:
Not mine

Summer heat:
Can't say with regard to laying since they were too young but we had some 90's in July/Aug and they were fine.
Winter:
Don't seem to notice the cold. Will go out in thin snow if there is uncovered grass to be had. Supposed to get "freeze your knickers" cold (like maybe -40) in a week or so. The current forecast says -1F for Wed and Thur night. We'll see how every one does.
Other:
We didn't handle any of the chicks all that much when they were young so none are "sit in your lap pet" friendly though the first to lay and the smaller Australorp would jump in my lap when I came with the large yogurt container. Nope, not yogurt - EARWIGS! They are docile, not bothering any of the other girls (the same can not be said of the Anconas). They like their treats, same as all the others and they foraged well before the snow flew.
Hopefully people who actually have some long term experience will respond.
Bruce