I have not used it in FCP, but I have in FCE. It’s outstanding. The best motion control for the price, especially for large scale images, or multiple motion paths, for which FCP has always been completely hopeless. If you’re doing motion control of any complexity on images at twice or larger frame resolution, and you want to work within FCP, or FCE for that matter, you absolutely have to use this plugin, if nothing else try it to see what it can. Then try and do the same thing in FCP. You’ll never look back.