Hi,
I'm also in Middlesbrough area, have a Mk5 GTI and am looking to boost power output.
Considering a Superchips BlueFin at the moment as the map probably suits my requirements best, i.e. not overly aggressive, smooth power delivery, easily revesible and can be had for around £375.
I haven't heard of the company you mentioned but then again I'm new to the tuning scene, let me know how you get on.
Have you considered the BlueFin?
Duke.