Petrol stations at Heathrow very hard to find near the drop off location.

The rental location is near the airport, with a dedicated reception desk at the airport exit directing you to a shuttle bus for car pickup. The pickup location is spacious with many service staff who are very friendly. The paperwork is correct, and someone accompanies you to pick up the car and explains the usage precautions. The process is smooth and fast.

The car was not as booked. We booked a Skoda Octavia. Instead, we got a Chinese made MG.

Like: Well priced for size of car, well known rental company, quite a simple process overall.
Dislike: Car booked was a Skoda Superb or similar, which is quite a large car. Car issued was a Skoda Octavia, which is the next size down.

Like: Service staff AMINAH at London Heathrow pick up was excellent. Friendly and efficient...even though it was near Christmas and I arrived at a time when the colleagues were going to take a group photo, she helped out immediately and was very friendly and helpful. Good job Aminah and thank you!
Dislike: Returning the car was a pain. There was no transport back to civilisation. I had to struggle to get out. If there was a courtesy bus back to the Terminals, nobody told me!!!! I walked and walked to find a bus stop to my hotel.