Efficient and reliable. That was my impression. We got picked up on our arrival in Palma airport, and the driver, a totally jolly Bolivian lady, had dropped us off at our hotel 15km down the road in no time.
I must admit I had been slightly apprehensive upon the return from the hotel to the airport. We were returning at 9.10am, and five minutes before time came the driver. No singing this time, but we got what we wanted. Very efficient.
I'm not sure whether we paid too much, possibly we did, so that could perhaps be something of a drawback.