We always have half a dozen (gives you half a dozen eggs a day). They are really very easy. Supply them with a good quality pellet feed and not too many scraps (although they really like scraps) and you will be guaranteed a good supply of eggs that taste nothing like the rubbish you buy in the shops. They are very destructive so they do need penning and you must put them away just before dusk otherwise Mr Fox will definitely kill them. We have cats and have never had any trouble with the cats attacking them.
miss one night and the fox kills the lot of them.
Never count them before they're hatched, is my top tip.
And if one of them chickens comes up to you saying the sky's falling in....well just take it with a pinch of salt, OK?