I rented an Audi Q3 for several months. Set up and car delivery were really good. However everything afterwards was poor. I received a ULEZ congestion charge, which Carson Demand insisted on paying despite my protests because they then slapped me with a £30 administrative charge. After protesting, they allowed me to pay the fine and removed the admin charge. Finally when the car was collected, it was during the Covid lock down and the car was not washed (car washes were closed). Cars on Demand despite agreeing to waive the charge, added cleaning costs and charged for minor scratch repairs to the tune of the deposit plus hundreds of £. Cars on Demand will fleece you when it comes to minor scratches/scrapes, which any ordinary bodywork garage could fix for a fraction of their charges. Be warned!!