The store is located very close to the train station and easy to find. Procedures are straightforward, but there is upselling; you can simply decline. You need to take the elevator to the underground parking lot on level -3 to locate the car yourself. When returning the car, the store conducts a strict inspection and appears somewhat unreasonable. Old damages on the car require proof with photos taken when picking up the car, and the photo's date must also be checked.

I thought it was a small rental company, but the car return process was very smooth.

Following the car rental company’s pickup instructions made it very easy to find, just a 2-minute walk from the train station exit and then down an escalator. Upon arrival, the staff suggested I buy a 'better' insurance policy which would significantly reduce the car deposit. Just refuse if you’re not interested and they won't insist. They also suggested towing insurance, saying it would cost 150 euros per tow without it. I said I didn’t mind and had sufficient funds, after which they politely dropped the matter. There’s a daily mileage limit of 300 km, and they listed where there were scratches on the car body in the contract, but they didn't walk me around the car to check these spots until after I'd signed the contract. So, I recommend that when reviewing the car's condition at the start of the contract, you should call an employee to check the car alongside you. Make sure to photograph any existing damages as soon as you get the car, so you can show these to the staff upon return to speed up the return process. The thoughtful staff also wrote down the name of the parking lot to use for return on Google Maps. Overall, the service was decent, and any additional charges they suggested were transparent and clearly explained, including the differences from the insurance I had purchased. Just evaluate it for yourself. (By the way, parking in Barcelona is quite expensive. If you're only exploring the city, consider renting a scooter instead, which costs around 45 euros per day and eliminates parking hassles.)

Upgraded for a little extra

It just feels like a very dishonest company. There is basically no way to really know how much the rental will cost beforehand. Even when one book from full to empty, we have to fill up to avoid fees. I am not even mentioning the insurance scam here. No use for prebooking insurance. You will have to take the Ok rent a car insurance if you don't want your experience to be horrible. Will never do business with them again. On the day of return, no one was there. We had to call some non obvious number to have service and assure us that someone will come take care of us and bring us to the airport. In addition, it was not clear at all at the time of booking that the company was not directly at the airport but somewhere else.