Izmil --Selcuk---Denizili--Fethiye--Antalya, Total 1100 km

I reserved a Mercedes C, and although I didn't get it, I would have been okay with a similar model. Instead, they downgraded me to an SUV, which is very unreliable. I booked this more than half a month in advance, and it still happened. Eventually, I found an Avis offline by myself, and they offered me a 5 Series at the same price. The online service is truly unreliable.

They didn't have the reserved car? What's going on?

The insurance upsell was actually fine, but the biggest issue was the wrong return address. We were told at pick-up that it was at T2, so we went there early and searched for a long time only to find the counter was closed. After calling, we found out it was at T1. Paying for parking was a minor issue; the main problem was going through security, finding the counter, and making calls, which took us half an hour. Fortunately, we arrived early; otherwise, we would have missed our flight. When we complained to the staff, they were indifferent and simply said it was wrong, which was really frustrating!

Terrible experience, the car kept flashing warnings.

Overall, it's pretty good. The only issue was that the staff at the store gave different information about the policy and pricing for one-way rentals compared to what was on the website. Fortunately, there were no errors at checkout.