PHOENICS or PORFLOW for Porous CFD??

[rkinga2]

I'm considering PHOENICS and PORFLOW CFD packages to model flow of gases and liquids through porous media, such as soils. They both seem good - PORFLOW is more specific to my current need, and PHOENICS las lots of additional capabilities that I might be able to use on other projects. Any recommendations or good/bad experience with either? How hard would it be to get up and running compared to other software?
Thanks
Randall