its still ludicrously slow for me, just like version 4 wast, I would say its more like 1/2 as slow then twice as fast because nothing about it is remotely close to fast, for a 5D MKII pic @ iso 6400 using raw moderate it takes like 5 minutes, with nik dfine its like 1 1/2 mins
hopefully others dont have the same complaints but obviously there are many hence why they are saying its twice as fast :(
I got it for $39 after a trial of No4. I use it once I have reduced the image size to 2400px (for Web sized images)and then it doesn't take long at all, after this I Smart Sharpen and then reduce to 1024px and Smart Sharpen again - I use an Action and it general it works well.