[habosa]

Before even looking at the details ... why would I use this? Uber is not a company that is known for great websites. They get (I'm guessing) 99%+ of their usage through native apps. So why would I believe they're particularly good at building for the web?

[lucasmullens]

It's probably got more engineers behind it than the vast amount of design frameworks, given Uber's size. And some of the components feel pretty nice, so maybe try looking at the details?

[SubFuze]

Even though most people's primary interaction with Uber is through the native apps, there's a ton of web applications built here. The opening line of the linked article is: "At Uber, we have hundreds of internal web applications" Additionally, there are a number of customer facing web apps from a web version of the rides app to Uber for Business to Uber Freight.