I tried to use it recently for a big app at work. All the *real* work is packaged up in modules, but for the webby front-end I thought CGI::Application would help. It didn't. All it did was irritate me, so before I got too far, I threw it away, and turned my code into one really big if ... elsif ... elsif ... else
. It works. It makes sense.
And it's only big because each block consists of stitching together a big data structure by calling a load of object methods (and these are BIG structures, for complex pages) which is then passed to TT. There's not all that many statements in there.