If the driving test booking system worked even semi-decently, systems like SpeedyTests wouldn't be necessary. Unfortunately, the booking system is unfit for purpose and SpeedyTest provides a much needed solution. I spent weeks checking multiple times a day for a test slot at my local centre. The only slot I was able to find was at a centre several hours away in 5 months. So I booked that and signed up the SpeedyTests to try and find a more convenient cancellation. I had little hope of it working, but within two days they notified me of a cancellation at my centre and within a date range that I wanted. I booked immediately and am incredibly happy.