I've taken Lyft but not Uber, they are practically the same except Uber gets more publicity and headlines, attacks, etc.
The drivers typically said once upon a time they made great money, but Uber and Lyft competition keeps dropping the fare so it is not as profitable as before. The alternative is to drive a cab, which may or may not make them more money. Most complains about Uber is people sign up and buy a new car, hoping to make a lot of money, but in the end they didn't and were stuck with an expensive car loan. The money in this business is so thin that unless you drive a recent model Prius (car must be 10 years or younger) you are not going to make money.
Half of the drivers I ride with were unemployed retiree driving what they already have, so they are happy. The others are young college students and they are ok drivings between classes, and the hours are flexible. Those who aren't happy are full time cab drivers with a car loan, and especially Taxi medallion owners, they got the biggest hit.
I can think of 10 more companies that are more evil than Uber, eBay would have been on the top, Microsoft on the 2nd, and Intel on the 3rd at least, all for their monopoly behavior and drive their competitors out of businesses via illegal tactics. Uber is hardly a monopoly as Lyft is almost always offered by the same driver at the same time, drivers typically do both and have both logos on their cars.