content: Tremendous potential but typical MS overdesign in places and bad UX choices in some places. The Skype integration is not obvious or user friendly dont understand how to create a conf call with external invitees. Features missing in desktop app e.g. Replying to specific messages in 11 chats. Cant create or edit channel wikis in mobile. The list of gripes is too long. But I still use it because a good integration with 365 b dont have to pay for slack c some great features