I'm not a daft cook, I can do LOADS of gorgeous meals, but my roast chickens are SHIT!! overcooked breast and undercooked legs.
I usually do Hugh Fernley's method of 20 minute sizzle at 220, then down to 180 for the rest of it.
I've also done Jamie O's thing of slashing the legs to get the heat in and of course, butter under the skin, but all crapola.
Tesco's rotisserie chickens beat me hands down every time (and are cheaper).
WHY OH WHY???