Powerful and fast provided you have a great graphics card with 1GB of RAM minimum and a lot of RAM on the machine I'm on MacPro and I confirm that 64GB is very useful because Dxo consumes me regularly over half working on files 14, 20 and 24 Mpxls. It is fluid, intuitive and optimized especially for the Raw, it lacks some settings (already known by the company ...) but I think it is a way to develop it commercially, of course! I use Aperture 3 for its full plugin NikSoftware / google, this trilogy is awesome! A strongly advise!
