The best part of discuss is its user interface which makes it very easy for new users to understand and use this tool effectively in their day-to-day activities. I like the fact that it has all the features one would need at any point in time when conducting an interview or gathering feedback from customers. There are no downsides as yet but if there are then they will be fixed soon enough. We have been using discussions for our product development team meetings. It allows us to keep everyone up to date with what's going on and get quick responses from different members of the team who can help brainstorm ideas in realtime.