Would give it zero - but no option for that. Fitted to my daughter’s 12 month old car on the basis that she’d only do 3000 a year as she parks at station to get to uni. After 6 weeks - flat battery. Kia tested battery with and without black box - black box draining battery as it’s a permanent live and she’s not doing enough mikes to recharge battery. Hastings disagree - must be a faulty box, send a new one. 4 weeks later - same problem! Now the advice is “drive it more!” It was a policy limited to 3k! Now it’s flat whenever she wants to drive it and the other option they’ve offered is to cancel the policy and pay for one that has a box fitted by a technician which is linked to the ignition. Unbelievable customer service- and NOT in a good way!