If you want to stay in Rome then book a hotel in Rome. But don’t complain about travelling from Ostia to Rome. It is a Hostel not a Hotel but having said that it is one of the best hostels I’ve ever staid in, yes you do have to take your sheets to reception on the last day but the beds were made-up and the sheets clean. The whole hostel is clean and comfortable, private shower and toilet and a good breakfast. The hostel is in a magnificent building which keeps a lot of it is charm the staff are friendly and helpful and it is safe and secure. The bathroom is fitted for disabled travellers and the rooms are large. Two single beds and a bunk bed in our room with a sea view.
Practicalities - It is 40 min from airport on bus. Bus stop is to the left of arrivals about 2 min walk cost about €1. It is about a 15 min walk from the Ostia station. Yes it is about 80 min from Rome Termini.
The main reasons to be in Ostia are the beach and Ostia Antica not as a base for a visit to Rome.
