[rileyt]

Jest used to have a lot of problems and was poorly maintained.

Over the past few months, that has changed entirely. Improved speed, lots of bug fixes, snapshot tests and general ease of setup with React projects have all really helped.

Jest is now the test framework I would suggest for anyone starting a new React project.

[mullsork]

Agreed. We started using Jest in April 2015 or so and I hated it with a passion for well over a year. I can't remember exactly which version it was but it go improved by miles recently. Now my goto JS test library without a doubt.

[k__]

Seems like it was a side project of some FB employees and it didn't get traction till a few months ago. Till then the project pretty much stalled.

[endisukaj]

Has the documentation improved? Last time I checked it (about a year or so ago) it was terrible.

[shaneos]

It's but a click away (and yes it has :-)) http://facebook.github.io/jest/docs/getting-started.html

[lacker]

We've improved it some but there's more to go. If you have specific parts that you consider to be still-terrible let us know!