It was convenient to pick up the car following the signs at Frankfurt T1. I switched to a VW Golf DTI which was a bit more expensive but worth it. Drove up to 200 km/h, thrilling! Returning the car was a bit tricky with the GPS, easier to follow the airport signs, T1 arrival, then follow the car rental directions.

Everything is standard. German company with regulated service.

Price increase for upgrades, pressured into full insurance, paid 150 euros more than online booking

The staff was friendly and only asked if I wanted additional insurance, with no hidden charges. The car had only 8000 kilometers on it, and I picked it up through a self-service process after completing the paperwork. When returning the car, the elderly staff just took the car and said I could leave, mentioning they would inspect it and contact the credit card holder if there were any issues. I wonder if there will be any charges? Haha, I didn't go back to the office to ask. Hopefully not, I drove very carefully. ^_^

В финальном счете была дополнительная сумма за страховку, о которой я не был предупреждён

В финальном счете дополнительно был начислен НДС