What You Can Expect
I booked shared arrival and departure transfer with Viator in Sept 2014. Completely hassle free and very efficient. The drivers are very polite and punctual. I was lucky in that there were no other customers and I got a private transfer both ways for the same price.
I would highly recommend this to any female travelling alone, who has hesitations about grabbing a taxi from the airport in a foreign country (particularly at night). Yes it costs more,but it is worth the peace of mind.
Driver was punctual and easy to identify. Drove me right to the entrance where my airline check in counter was located.