how's the food
I really recommend you the delicious roman food:
roman food is very simple and quite heavy. In Rome you should taste pasta matriciana and pasta carbonara.
Like any metropolis, there is good food and bad food and Rome is no exception. Do some research-- there are several great food bloggers like Tavole Romane who write about the dining scene. Important to get a Roman pizza and try Roman cuisine like carbonara, amatriciana, puntarelle. . .