Even in the wake of more complex frameworks like Catalyst, I find myself using CGI::Application all the time. It accomplishes a common (and usually painful) task, and does it quickly with a simple interface.
The documentation is excellent, as it consists of mostly code examples. A good thing since many of us programmers (myself included) seem to learn better by doing.
If you're looking to build the next great content-management system or some other massive and highly complex application, you may need something more complex, but if you just want to build a quick, small, simple, stable application, this is the right module.