It was a focused product. Native apps, high performance, no funny business. Yes, it lacked some features that the newer stuff had, but it did the team chat part really well and got out of your way.

Deploying web apps lets you iterate faster, stuff features in faster without ending up with different capabilities across the group of apps. Sometimes the ability to add features too easily is abused to add too many features without thinking through them.

Apparently it was great simply because it was a native app. Who knew that was the top criteria for a work chat app.