I had a really good experience renting car from Sixt KL branch. I booked the base class car and got a Renault Clio. The car was in an excellent condition with great features too like inbuilt navigation, all sides sensors, cruise control, lane assist and so on. The handover process also went very smooth and the staff at the branch was really helpful.
I got the deposit back in around 3-4 days after returning the car.