After each Uber ride, you can generally rate your driver. For the most part the ratings are 1-5. For a short while in Austin Uber was testing having riders rate their drivers with emojis.
Uber drivers rate you as well. Although it doesn’t matter nearly as much. Consistent problem customers can be invited to no longer use the platform — and either get a new phone or take up with Lyft instead.
A rider’s number is more of a curiosity. Uber will tell you your number. You used to have to ask. Now it’s in the app. And in fact they will now give you your average rating to two decimal places.