I wanted a simple flash gallery for a portfolio of photos on my site. I also wanted a gallery that prevented pictures from being easily saved on the users hard drive.
IF Gallery does all the above and seems stable, although it is a tad pricey for what you get feature wise. You can configure many of the colors etc. I would have liked to be able to use/add the Tahoma font.
The other things that would be really useful is some development of the backend management. For example, being able to delete images in batches or multiples, and uploading a zip file as opposed to single images.
All in all, I think this is a good component, and I look forward to any new features.