Car rental has never been so difficult. I arrived at midnight and the lines were just as long as all the pictures seen on this page. After around an hour of waiting it was finally my turn, staff seemed to be nice but they were just "honeypotting" me, as Seth Rogen would say, they know what they're doing, and they're out to get you.
Having the reservation already made online, you would think the process would be a breeze. Nope. I was bombarded with the same questions until I misunderstood a question and the fight is over, they'll hold it against you and there's no turning back.
I ended up having to pay extra but on top of my prepaid reservation, they charged me fees twice and I wouldn't have known if I didn't get on their backs after I returned from my trip. I had to follow up at least three times to get my money back. Make sure to do your own calculations!
Don't make the same mistakes that I did, and don't let them get you! Check your bills! Other than that their cars were fine. A lot of KIAs tho.