I would imagine it also applied for B2B. Think about apps like Coda, or services like GitHub. I remember using a task tracking system that I completely swore by

I would imagine it also applied for B2B. Think about apps like Coda, or services like GitHub. I remember using a task tracking system that I completely swore by and told everyone I knew about. All it did was track tasks and is very much B2B, but my obsession with its UI made me more productive and those became a talking point, where I'd always highly recommend it. Slack is another great example of a B2B co that passes that test.