I'd prefer revo,
It may just be me being silly
but...I don't like the idea of plugging in a handheld set that has a map on it for all VW golf "ed30" or "GTI" from 2006-2008 etc etc doesnt seem right, I'd rather have uploaded on a rolling road and adjustments made whilst under the supervision of a tuner who can say...it's lean or missing rather than me uploading it on my drive and then happy days!
I've never had bluefine but I've only heard good things about it! It's just my opinion and I may be wrong about the way it's uploaded as I've never done it
Just my 2p!