Quick pick up and return, got the exact car that was booked. All worked great.

The service is decent. They do promote insurance, but it's not mandatory. They explain that if insurance has already been purchased on a domestic platform, there is no compulsory requirement.

We had two people and two large suitcases; the car we originally booked couldn't fit them. The staff said we couldn't place them on the back seat or we'd be fined (though I doubt that would actually be the case). They offered an upgrade at a cheaper price, but it still would have cost us nearly 2000 extra. We firmly declined, and in the end, they upgraded us to an SUV for free! Extremely grateful!!!

Overall quite good. The store at Madrid Airport in T4 is easy to find. If you land in T4S, be sure to take the shuttle to T4 to find the store. I wandered around T4S for a while... When returning the car, make sure to go slowly. If you drive too fast and miss the entrance, you'll end up at the parking lot's toll booth. Once you're there, you can't go back and will need to take another lap around. The actual car return entrance is a small, inconspicuous opening on the right before the toll booth.

Excellent service