We have been experimenting with XML2Selenium after witnessed one presentation by Dima Harachka of JazzTeam. We experiment with it on one of our big projects to do regression tests for the one module that had lot of problems. Our test guy knows Selenium very well but XML2Selenium makes possible much quicker production and change of regression test scripts. He likes it and thinks it is useful product. Biggest advantage is quicker development and better structure of tests. Very easy to integrate. It makes lot of Selenium power accessible for non-programmer.
We finished final evaluation and proceed to buy this tool.