The formatting of the navigation widget is messed up on Chrome/Mac. It overlaps the page text. I'll also second the earlier comment that the default bootstrap

The formatting of the navigation widget is messed up on Chrome/Mac. It overlaps the page text. I'll also second the earlier comment that the default bootstrap theme is pretty plain. I know you're probably focused on functionality right now, but spending a few dollars on a Wrap Bootstrap theme would make your beta more appealing to your audience.