Same here. We're a small company (6-7 employees plus a handful of freelancers) and we previously heavily relied on regular Skype. We mostly chat one-on-one and

Same here. We're a small company (6-7 employees plus a handful of freelancers) and we previously heavily relied on regular Skype. We mostly chat one-on-one and use team chats mostly for general status updates. I'm working as a contractor so I also use Slack a lot but Slack was a terrible fit for our company and its GDPR compliance is extremely sketchy at best. Also the calling features are practically useless -- I haven't once managed to get anywhere near acceptable quality from that. And don't get me started on using Slack on dodgy wifi (which Slack seems to be either incapable or uninterested in fixing, if my conversations with Slack devs are anything to go by). If you're already on Office 365 and mostly Windows, Teams is a no-brainer. Slack is a replacement for IRC. Teams is a replacement for Skype for Business. There is a lot of overlap, especially in how Teams is covered in the press, but ultimately I feel there are more differences than commonalities, especially if you account for software like Mattermost and RocketChat.