Ha! The UI is so bad that you will spend the entire event trying to figure it out – missing the entire event. Then you HAVE to use Color to see what the hell happened.
This is an app built by engineers in the valley for engineers in the valley. This "bubble" project is truly a bubble. You need to step outside your own experience and understand if your products are viable to others who aren't you. Walk around anywhere that's not SF or NY and this app will be useless for at least the first year. And who can can make sense of this UI other than an engineer? Engineering breakthrough? Yes. Useful mobile tool? No.