I loved this the last time I used uber. The driver went as far as to hold out his arm for me to lean on while I was getting into the car, which was a great help because I was having unpredictable dizzy spells all morning long. Then he drove like a maniac so I could get to SFO in time to catch my flight, and he deposited my luggage next to curbside baggage check. Taxi drivers generally don't go that far, they'll just haul your bags out and leave them on the road in my experience :(

Not to mention I had over two dozen taxis, most of them empty, ignore me as I spent a futile 15 minutes to hail a cab on Market Street before I gave up and used uber. Not my problem if they don't want $50, and uber was only $65 in comparison..