I'm currently comparing several products in an effort to improve my workflow and DAM. One feature I really like about Breeze Browser Pro is the option to "Display sharp preview images using the unique ‘HQ mode’".
This option makes reviewing images much nicer, especially when you're comparing fine details and focus, and it's much easier to visualize the final image. I've mentioned a few other things I like about BBPro/Downloader Pro in other topics, including the creation of multiple directories on download and the use of customizable html templates. I think html templates are coming in 4.5, but the other features would be nice too.
Cheers,
Andrew