It interface looks good. However, the program frequently dies. Quickest way:

1. Drag the 3 sample images into the program
2. turn off then on then off the checkbox for the 2nd image (probably doesn't matter which one).

This is just one way of getting this error. It seems to happen on changing nearly any control. My guess is that it is calling Enfuse multiple times and it can't handle it.

I'm using Snow Leopard on a 4 month old iMac, not sure if the new OS has something to do with it.

ImageFuser seems to be rock-stable by comparison, but the GUI doesn't have some of the nice touches of Bracketeer (like click on a thumb to see full image, hover to see name), and is a little more complex. Then again, it does give you more setting to tweak your final image.