Was in Phoenix a few days ago.   Uber provides an amazing value and you know who you you are dealing with for the ride.    Always amazes me how otherwise wonderful destinations create a taxi system which provide an over priced and often stressful first impression.  My last taxi ride in Anchorage was long long ago and the guy was watching TV which was installed in the floor of his cab.   I will always rent a car over taking a taxi.   Their is the bus which goes every hour and only costs a few dollars to down town.