Re: Corel Aftershot Pro for image mgmt (based on Bibble Pro)
Corel Aftershot Pro (formerly Bibble Pro) is very nice for image management and basic editing (white balance, tone curves, sharpening, cropping, etc.).
It's not going to give you the editing ability of Photoshop CS5. But, many photographers find that a package like Corel Aftershot Pro is great for saving a lot of time converting raw files (and it also works with jpeg files), basic image enhancement, rating, tagging and and culling images, etc., and it does most of things a typical photographer needs, saving a lot of time.
It's closest competitor for Windows and OS X would be Adobe Lightroom; where photographers would use it to import raw files into catalogs, make basic corrections for white balance, sharpening, tone curves, etc., then export them to another format if more advanced editing is needed using a product like Photoshop CS5.
Now, Corel Aftershot Pro does have a few features that Adobe Lightroom doesn't have. For example, it allows you to create layers and add regions for selective editing, where on may want to increase saturation in one area but not another, or use fill light on the bottom of photo without impacting the sky, etc; using the amount of opacity desired for the edited portions. IMO, it also has better viewing and metadata options compared to Lightroom (viewing photos without using catalogs, viewing photos from more than one catalog at a time, etc.).
Of course, Aftershot Pro runs on Linux, and Lightroom doesn't. ;-)
You can also use the same license key with multiple operating systems with Aftershot Pro. So, if you have a system with OS X, Windows 7 and Linux, you can use the product in all three.
Here's a link to a new Webinar that demonstrates a lot of it's features. The selective editing functions (creating layers with regions for editing) are demonstrated starting around 30 minutes into it (most of the first portion of the webinar is geared towards professionals doing events like weddings, where a product like AfterShot Pro can save a lot of time). It's a great product for streamlining workflow (as is Adobe Lightroom).https://www.youtube.com/watch?v=i633ZBya9Fc
You can see more about the features if you look at the site for Bibble Pro (Corel Aftershot Pro has the same features, as Corel just purchased Bibble Labs and relaunched the product as Aftershot Pro. You can click on one of the features (selective editing, etc). at the top of the page to see more about it:http://www.bibblelabs.com/products/bibble5/features/
I'd suggest that your friend just download a trial version and see what he thinks about it.
As much as I like some of the open source products like digiKam, DarkTable, etc, they're really not in the same class as a product like Bibble Pro (now Corel AterShot Pro) for quickly browsing through raw files, making basic corrections, narrowing down a set of keepers, then exporting them to a usable format (jpeg, tiff, etc.) for further editing if needed, as they feel "slow as molasses" in comparison when trying to work with lots of images and make fast corrections. So, if you're working with a lot of images (especially raw files that can bring other products "to their knees" due to time needed to build previews and raw conversion time needed), a product like Aftershot Pro is great.