Hello Rob,
We strive to make things as easy to use as possible. All you need to do to get up and running is install Glider, open your project folder, hit debug and things should just work. Ctrl-space is the hotkey for autocomplete. To get a bug tracker to work you may look at this resource:
https://netbeans.org/kb/docs/ide/kenai-issuetracking.html
You also should be able to use all the plugins you find in the netbeans plugin repository. We are also working toward generalizing the lua plugin so it can work on a netbeans platform environment. We have not tested it yet with other plugins (ie java, c++, html, js, etc) but in theory things should just work because of the wonderfully loosely coupled netbeans architecture.
Regards,
M.Y. Developers