The apartment is suitable for 2 people, there are nice restaurants in the area, 2 supermarkets 10 minutes away, so we were all set. Bus 492 goes to the city center, and it also stops not far from Termini (although keep in mind that for it to stop, you need to press a button - we didn't know that the first day and missed our stop). You can also walk to Termini but it's quite a long walk and not very pleasant near the station itself.