Pros
The engineering culture at Slack makes special efforts to be warm and inclusive and sane. In particular, "work hand and go home"... or during covid, "work hard then stop working." We encourage working sustainable hours, except for when absolutely necessary. The massive social workspace with amazing active channels (#dogs, #trash-pandas, #cooking, #baking, #sf-classifieds) provides a way to make real connections with people in the company who you might not otherwise interact with. We ship software that people want to pay for!
Cons
So. Many. Channels. It can be exhausting to figure out which channels to actually pay attention to, and how to keep up with channels while also getting work done. Using hack is challenging because there are hardly any public resources or tools for it.