I did four years of Swing development and while it has it's difficulties, it was possible to deliver on every feature the client required. It was flexible and (

I did four years of Swing development and while it has it's difficulties, it was possible to deliver on every feature the client required. It was flexible and (if you pay attention) performant as well. It can be difficult to find the right place to insert your code to get what you want done, but that's the case with most UI toolkits. The easy stuff is easy and the custom stuff can be a real headache.