One very good reason to use Qt is QML. It's just such an amazing language to work with for creating GUIs and is also a great way to learn declarative programmin

One very good reason to use Qt is QML. It's just such an amazing language to work with for creating GUIs and is also a great way to learn declarative programming. And it is easy to mix QML with logic in either Javascript or C++ if you want to. Every time I work with anything else, like HTML+CSS, I just miss working in QML. I don't have a lot of experience with Electron apart from working on some Atom packages. Electron seems like a good choice to me if you have existing code or libraries in JS that you want to reuse. Or if you want to make a combined web+standalone app. But if you want something that's fast, cross-platform and fun to develop, I would go for Qt.