We paid €20 for a two day travel journey for a bus with wet, hard plastic chairs, terrible customer service and a schedule that was never adhered to.
The main reason we chose this company was because the bus comes every 15 minutes, though it is rarely the case. Sometimes you may wait up to 20, 30 minutes and worst of all, in the bus stops proceeding the Termini, be prepared to wait for a few buses to go past as most would be so full it wont take all the passengers that have been waiting at the stop.
Also you are made to change the bus at Termini, which is an inconvenience with two seniors and one baby!
Also the audioguide did not work, bus was quite dirty with wet seats, staff were so absolutely unhelpful, really the whole thing was an embarrassment for me as the holiday organiser!
Dont bother unless you really have to! You see so much more walking within the centre of rome, as these buses really cant access the majority of the alleyways in the city centre.