It's kind of a piece of shit. The Mac port is horrible. None of the widgets work properly, all the menu items are in the wrong place, and it supports essentially no system keyboard shortcuts. Like cmd+F doesn't do "Find…", it randomly resizes the thing you're editing. It's everything bad about Qt apps in one place. It also ships with its own 180MB copy of Chromium embedded because, you know, how could anyone write a desktop app without a copy of Chrome these days?
Simple things like doing a presentation of slides are unintuitive and kludgey at best, and sometimes impossible. There are features revealed in the UI that, after digging through the forums, you'll discover are actually unimplemented. The audio mixing is very lacking; there's no easy cough button and the levels indicator doesn't work properly.
So does anyone know of any alternatives?