Absolutely, I've used it on a couple of large projects. I would say that trying to distill its appeal down to the phrase "ease of use" probably loses too much

Absolutely, I've used it on a couple of large projects. I would say that trying to distill its appeal down to the phrase "ease of use" probably loses too much nuance. The best aspect of it comes as a project matures, and especially as it changes hands from one developer to another. Having a statically-typed source language allows you to bravely refactor, especially with the help of an IDE, knowing that the compiler will catch potential breakage long before runtime. While we're on the subject of GWT, I want to plug the best one hour presentation that you'll ever find on the subject of software architecture best practices in a large GWT project: http://code.google.com/events/io/sessions/GoogleWebToolkitBestPractices.html http://code.google.com/events/io/sessions/GoogleWebToolkitBe... I have watched this no less than 16 times, and keep pulling out bits of wisdom with each viewing.