Qt & Qt Creator have evolved over the years. I remember giving the tools a go some years ago and ditching them because they did not install & work properly. This is still the issue with some of the packages, so you need a bit of time & patience to get started on Qt.
One of the stronger concepts in Qt is Qt Quick/QML. It allows you to create stunning graphics with little work. This concept is not so unlike the one I am planning myself and well integrated into QtCreator. The strongest part of Qt is however it’s integration into GPU technology that allow you to create high performance graphics applications with ease. Again – usage here requires a bit of time, patience and willingness to learn. That said, if you have done graphics on other platforms you will soon embrace the easy and power that comes with Qt. It is worth the time invested.