Well, maybe I am too much exiting to be abble to give a clear and fairly opinion. This is just one of the best extension I ever had. It opens almost (no eps) images WITHOUT starting any apps! This is useful for photoshop images for exemple. And it very stable. And it very easy to use. And it cool to do a basic slide show (mixing images, quicktimes movies, and sounds). Waouh! It worth the 5 stars.