How useful is learning GWT?

I develop web applications and in my job so far, I have been waging battles with various browsers whenever some JS or CSS quirks happen. I believe using GWT will help me tremendously from what I understand from this description:

Writing web apps today is a tedious and error-prone process. Developers can spend 90% of their time working around browser quirks. In addition, building, reusing, and maintaining large JavaScript code bases and AJAX components can be difficult and fragile. Google Web Toolkit (GWT) eases this burden by allowing developers to quickly build and maintain complex yet highly performant JavaScript front-end applications in the Java programming language.

What is the general opinion on GWT? How easy is it to learn and use it?

EDIT: I am a Java developer!

java gwt

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Personally if you can find an alternative to Ext-GWT do, as the support is awful, the whole thing is buggy and ill conceived. In Addition, I have failed to find any tutorial on running Ext-GWT in Eclipse. I have successfully installed and run a GWT sample app in Eclipse with small fuss, but now I wish to use the Ext-GWT library, they cannot play together. The Eclipse GWT Plug-in sets up its own little environment, which won't accommodate Ext-GWT components and visa-versa. For example how does Ext-GWT fit in with GWT moduleOnloadFunction, when it needs its own entry point? We regularly use the JS library at work which is fine, but the forums are abysmal, the moderators are often rude, or too vague, and there appears to be no such thing as a "simple answer"

answered 2010-06-10T12:15:05.807

How useful is learning GWT?

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