While I'm grateful for the new ride sharing companies, I wish Uber was back. There are a lot of tiny details that Uber nailed that without, my day-to-day life requires quite a bit more mental overhead.
For example, I cannot have multiple cards on file, so I often have to remember to swap out the card before I can call a ride based on whether it's a business meeting. Uber would almost always pick me up within 3 or 5 minutes; even when the new apps show drivers right around the corner, I usually get matched with someone 15 minutes away—and the ETA is always way off. This makes scheduling things more difficult. They're quite a bit more expensive.
None of those things are deal-breakers, of course. But it's kinda like having an iPhone and then going back to a flip-phone. It still works, you're glad you can still call people, but a lot of the magic is gone. And while I know all of the companies are working hard to catch up, the edge cases are numerous enough that I don't think it's realistic for them to deliver a magical experience anytime soon.