Hi,
I'm just back from Rome & sorrento at start of october. The sites are all great to see especially vatican. I wouldn't go with the expectation of of going out every nite. I didn't see any niteclubs. Drink is very expensive there> Think it was about €7 for a pint of bud. The hotels are very expensive also. We stayed in the historical centre (waliking distance from main train station- termini) and we could walk alot of places- we used the metro also. If u stay anywhere near the metro stops u should be grand. There are two metro lines and the cross in the termini station.
Hope this helps