How reliable and comfortable are the public bus in Abu Dhabi ? I plan to take on arrival and departure the bus A2 between the airport and the Sofitel quite late at night (past midnight). Is there space to store a roll-aboard ?
Also where is the bus stop at Abu Dhabi airport ? I will be arriving and departing with British Airways, if that helps.

If the experience is positive I will probably uses the buses to get around the city during my trip.