Only time I use it is if I want to convert a RAW file as close to how an "in-camera-jpeg" would have appeared, with little fuss.
Otherwise, for most RAW processing, DPP is much more powerful.
For sorting and organizing images I found Adobe Photoshop Album Starter Edition 3.0 to be great (and free!) It's a slight less powerful organizer than in Photoshop Elements, but you still get to use keyword tags, and the like, and even has a few editing tools like Red-eye, and cropping, and basic brightness/contrast tools.( I think.) If you ever move up to Photoshop Elements, I think it will let you import your Album and tags there (May even be able to import it into Lightroom.)