Nice! We also use Powerdesigner in our DWH projects. In our case we do lots more in powerdesigner. After that we generate our complete ETL code for stage, dwh and datamarts for different ETL tools. Such as Oracle OWB, Informatica, IBM datatstage en MS SSIS.
So we save a lot of time and have neat code!
We developed our own generator based on the XML output of Powerdesigner. From these XML files we generate the different ETL mappings in the different ETL tools. So the customer has a rich, well documented and methodic design in Powerdesigner. And a high quality ETL code (without any errors). Also it fits super in a agile and changing environment, because the only thing you adjust is the powerdesigner models. This generator tool is free of charge for our customers. There is one request, we do the implementation and then the customer gets the benefits. This is our USP against outsourcing to India.