I'm having mixed feelings about JSTL. In many ways, it's really nice. But it's a bugger to debug. And I've had trouble locating good docs.
Here's what I've found:
Is there any good stuff I'm missing?
BTW, one of the tings that I like about JSTL is that any class implementing the java.util.Map interface can have its attributes referenced by EL's dot operator. Nice.
Some good links there.
I tend to use the spec which is linked from the Sun JSTL page but I can't find a direct link to it now.
I have been using it for about a year.
My only gripes are the debugging (as you say) and the age it takes to recompile (although that might be a resin thing).
My blog also contains one or two minor complaints, just search it for JSTL.