We have used FotoFuze, but it was difficult because are internet isn't very fast. So uploading and waiting for the photos to fuze took forever. Now, instead of using fotofuze, we get the same effect by using the dodge tool in photoshop. It is a little more difficult at times, but we don't have to wait for the internet to load and so fourth.
I agree with creationsbycollette, it all depends on the look you are trying to create in your shop. But I would try it out, it is a good program and does make your photos look better and brighter. Good Luck!