Building a QtJambi project presents initial challenges requiring Qt framework installation and path configuration. The development approach itself is clean, involving creating windows, adding layouts, and placing widgets. However, QtJambi's API can become complex, mirroring Java Swing development with many layers. An abundance of overloaded methods and constructors, like thirty-four for QShortcut, stem from direct C++ API mapping. QtJambi is not thread-safe, mandating GUI updates on the UI thread to prevent crashes. There is no code reuse between Java Swing and QtJambi, necessitating learning its distinct architecture. AI tools often struggle, mixing Swing concepts or misinterpreting C++ idioms for Java. Integration challenges arise, particularly on macOS, with differing event handling and a lack of native Java QuitHandler support. Mixing Java AWT with QtJambi leads to instability and functional issues, including with java.awt.Desktop. QtJambi offers power but comes with complexity and instability compared to standard Java UI options. While a GUI builder exists, its cost is prohibitive for many. Interactive Brokers' desktop trading platform is a notable application utilizing QtJambi.