I am heading to Athens in a week, stay in Airbnb accommodation. My host offers to arrange airport transfer for me, 35 Euro from the Airport and 45 Euro to the Airport when we are leaving (very early morning). I am aware that the proposed prices are lower than the fixed rates but I didn't find anything on the forum for this practice. Sorry for the silly question but this is my first time in Athens: is it ok to accept the offer? I can't think of any risk but normally wherever we go, we just take a cab, just want to make sure it's ok for arranged pickup like this.