It's true that Launchd Editor has a slightly less clunky interface, but it's much less functional than Lingon. And Lingon's interface isn't sooooo bad.

Launchd Editor would be much better if it supported the sort of high-level viewing of agents/daemons, both in user and system directories. But at this point I think I would suggest instead just working on Lingon instead. You could always package it with a polished up UI and continue to charge for it.

... and ugly as hell. This at least looks like a Mac app, and there's nothing saying you need to pay the $5.

Don't mean to bitch, but Lingon does the same thing. And it is free and open source.