Well one of the drawback that i found is we cannot test the out of the box built in pipelines.....
well why do you want to do it???, because i want to test a transform, i want to see if my flat file is getting disassembled properly....etc, you can over come this by creating your own pipelines(a copy of the default ones with the same components)......
Tomas's testing library handles this very nicely...
