This was first ever positive experience with Sixt. Choose it only because of location, which was few steps away from my hotel. Pick-up process was incredible, but not because of company, it was a very impressive work of manager Aythami (sorry if I spelled it wrong), he helped me a lot with my requests, recommend to visit places around Barceloa that were really beautiful and authentic. So I'm leaving this review just to personally say thank you;)
PS: already got back all deposit, just 2 days after dropped a car.