The couple of times in the last few years that I have given in to the temptation to use a legacy cab instead of Uber/Lyft, I have always regretted it. Not much recourse if you think you have been overcharged, or if the driver used an inefficient route, and you have better safety with Uber when your location is being tracked in real time and there is an emergency button on the app. And often the reason someone drives a legacy cab is that they are unable to pass the Uber/Lyft background check.