it will be great if the application will have a built in help mechanism that will include either links to a chm file or in body help.
it will be great if there were examples and in a case like winperf counters or wmi queries there will be a line explaining the structure that has to be entered.
it will be also great if all of the variables there are will be mentioned in the user manuals respectably to the relevant section like variables related to the discovery process.

10x,
lindeamon