Another option to consider is the GIAC tuning software. It's been tried and tested on the Golf GTI MkV and other 2.0TFSi/TSI engined cars and all the reports I've heard/read have been very favourable.
I've spoken to Star Performance and VW Speed about it, and although the Scirocco is not currently listed by GIAC, they both said that it wouldn't be a problem, it might just take a few days to get the necessary files back from GIAC.
My Scirocco is due for delivery in the first week of Feb, and I've already discounted the Bluefin personally because it's too limited compared to the Revo or GIAC. It also increments the Flash Counter on the ECU which the GIAC doesn't (unsure about the Revo). Like the Revo you can also detune your engine with the GIAC, which is great for me when I'm crawling at 0-10mph to work each morning. The GIAC also allows you to switch programs while driving, so I can have it detuned through city-traffic and then crank it up when I hit clear roads.
It loses out a bit to the Revo on customisation if you go for the Revo Select, as you can't change specific settings.
Still might be worth considering. Check out the links below for more info:
http://www.giacusa.com - GIACs website
http://www.starperformance.co.uk - Star Performance (Kirkcaldy)
http://www.vwspeed.co.uk - VW Speed (Norwich) better off phoning or emailing though as the info on the website is very limited...