Our team at Streak has been using the product for several months now and are pretty happy with it. The killer feature for us is the threading model. We found S

Our team at Streak has been using the product for several months now and are pretty happy with it. The killer feature for us is the threading model. We found Slack to be really hard to follow in a really active channel and worse, hard to catch up on if you've been away for a while. Its easy to skim the threads to see which are important. One thing that might be jarring for people coming from slack is that the entire thread moves to the bottom (newest) any time there is a new message in the thread. Similar to email but in a chat product, you really see it moving around - just took some getting used to for us. We also found the search to be really good. I don't really have a hard time finding things as I did in Slack - I think the threading also really helps here. Adoption was pretty quick in our company because it works with the old (regular?) hangouts chat thats built into gmail so people were already used to using that. It's definitely not as feature rich as slack but for a new product, it works for us. I wish there were more integrations with 3rd parties (looking at you github).