The line at the London airport branch was very slow that day, and the Google navigation was inaccurate, which made me anxious when I couldn't find the drop-off point. Finally, I asked a local taxi driver and found it. The staff was nice, nothing unpleasant happened. It wasn't until my deposit was released today that I felt confident giving a fair review. 4 stars, it's okay.

Like: End to end reliability, condition of car, performance. When the former renter only refilled the vehicle to 3/4, we obtained a small refund to honour this.
Dislike: Hard to return at Luton Airport (car return not well sign posted) but not Hertzs fault. Airport needs to do better.