Our flight was supposed to arrive in Munich at 6:00 AM, and we had booked to pick up the car at 8:00 AM. The flight was an hour early. After a brief rest at the airport and shopping at the supermarket, we went to the counter at 7:30 to handle the car pick-up. A male staff member initially assisted, but said our reserved car type (Volkswagen Golf Estate or similar) was still in town and suggested an upgrade for €25/day. I declined, suspecting a sales tactic. He bluntly told us to wait and come back around 8:00-8:15. After 8:00, a female staff member assisted us, and after verifying our documents and credit card, she didn't hassle us since we had full insurance through the car rental company. Just as she was about to hand over the Volkswagen keys, she and a supervisor couldn't find the car's documents. They politely explained it was an internal issue and offered us a free upgrade to a Mazda. Waiting proved worthwhile!

There were quite a few people, had to take a number and wait, the waiting time was over 10 minutes.

There was no problem with the queue time. The main issue during the service was the insurance. Before departure, I had purchased full insurance on the Zuzuche website, but when I arrived at the local rental counter, I was informed it wasn't full insurance and had to pay over a hundred euros more. As tourists driving in a foreign country, we definitely choose to buy insurance, so I don't understand what the difference is between Zuzuche's full insurance and the car rental company's full insurance.

Picked up the car at Munich Airport; the service was terrible, with staff having poker faces as if we owed them money. Very inefficient. I booked a Touran, but they gave me a Kia, which was quite disappointing. The only consolation was that it was a new high-spec car with just over a thousand kilometers on it.

Like: Clean car, matched the size we had ordered although not the brand. Easy to collect (after the long queue) and drop off at Munich railway station although you need to keep your eyes peeled to find the drop off garage.
Dislike: We queued for nearly an hour at Munich airport to pick up the vehicle even with the ticket system. The ticket machine needs to be more obvious or at least a more obvious sign.