Awful and impossible to remain within their 'parameters'. I never used my phone and stuck to the speed limits but apparently I 'braked' too much/hard and 'accelerated' too much/hard - really very difficult to understand what it is exactly that you're supposed to do - crash into people that pull out in front of you? Also, it says that only affectes your fuel so no idea why they're even scoring you on that!? Ridiculous. I drove so slowly, carefully and tried not to brake (!?) and still couldn't get my score above 19 - 30 is their minimum. Again, ridiculous. My insurance is now being cancelled and the only positive I can say about this insurance is that there's no charge for the cancellation. Customer Service actually was also good, so won't mark them down for that.