Had my chickens for aprox. 5 weeks purchased them as 8 week old pullets from 2 different poultry farmers in Victoria, Australia.
my chickens are
2x White Leghorns hens
3x black Australorp hens
1x ISA Brown hen
not having any real issues except very high food consumption, almost gone through 1st 20kg bag of chicken feed
things im looking at improving are the "water feeder", modifying it too automatically refill to full level from water stored in rainwater tank. And possibly get a larger grain/pellet food dispenser as refilling it every couple days is a little annoying.