My son is due to sit his Theory Test, so I bought this to help him along. Although (as mentioned by another reviewer on this site) it doesn't cover the Hazard Perception side of things, it does exactly what it says on the box, and there were some great offers in the pack for extra learning materials that covered those elements.
Shame my son was already with an instructor, so we didn't use the free driving lesson offer, but the software was decent, and better than one his mates were using (not sure which one that was).
His test is in a couple of weeks - I might upgrade this review to four stars if he passes! :-)
UPDATE June 2009 - he passed first time!!! This product officially helps you pass your Driving Theory Test :0)