Hi,
Even i am trying uix, it is better in the sense to design front end, as we have rich set of components like tree, train, switcher etc. but event handling, data binding, partial rendering etc are very difficult topics for me to understand though if u really spend time and once get the idea of these, u can design better applications in uix than in jsp. Morever, u can integrate jsp in uix page. so where u r not able to use uix include jsp and solve the problem, as i saw my collegs are doing like that.
Priya