Are the buses and the subway convenient, or a big hassle for people not used to using them? We would like to see the usual attractions, most likely a show or two, Statue of Liberty, Time Square, museums, etc. We would also like to visit places like Chinatown or Little Italy if these are worth visiting. Any comments? Can people offer some tips on getting around, things we "must see" beyond what I stated above, etc. Also, do they have some kind of "reservation" system for people for some of the sites, e.g. some attractions in a city close to my home allow you to reserve a ticket by paying ahead online, eliminating the need to stand in line for an hour or more before the place even opens. Thank you!