Shit

1. There was no order in the queue, and no one managed it. 2. They enthusiastically encourage you to add extra options (such as insurance).

Crap, lazy and often rude customer service. I waited over an hour to pick my car up (making me late), and I had to ask many times for receipts and copies of paperwork. When I dropped the car off it was a very fast process. However, I had to follow the staff member very closely around and in the car when returning the vehicle, as he kept trying to run away from me - maybe trying to add problems with the vehicle that weren't there?? He also said we checked out a satnav on the form and that we didn't return it - we didn't even take a satnav in the first place! I got an overall dodgy vibe from the whole experience.

Pickup was delayed by 1hr, counter staff not good at customer service. Rest was fine, best rates so far received.

Due to the fault of my bank I ended up not even getting the car, but I can state that Green Motion apparently advertises one thing and does another. In my case for example, at time of reserving the vehicle there was a up-to amount for deposit although at car pick-up, Green Motion wanted to charge me a 3 thousand Euro deposit, which is ridiculous and I would never agree to such amount. I will also state that in my short time spent in the Green Motion office I overheard other clients making similar comments. Next time I went with a serious company right in the airport where my deposit was 200 bucks.

Like: We didn't have to wait in line, either for pickup or drop off. The price of the rental was very reasonable. We were given a free upgrade to a larger yet still fuel efficient vehicle, and the car had GPS, which would have cost us substantially more than the total price of the rental if we had to pay for it.
Dislike: Although you can pick up or drop off your car between 06:00 and 22:00 at their Heathrow Airport location, you can only call them (or any other Green Motion office) between 09:00 and 17:00. Also, we had to pay 9 pounds each for my wife and me to ride the Hoppa Bus from Heathrow to Green Motion and back again. While the car rental broker company, EasyRent, said that we would not be reimbursed for this fee, the supplier, Green Motion, said that we would, and we have not yet resolved this issue.