Overall, it was pretty good. The vehicles were relatively new, and the features were satisfactory. However, it seems like the cars from rental companies in Malaysia are all like this.

The car was not cleaned and there were a lot of dents and scratches on it. The rear lights were broken but worked, the handbrake light kept coming on when you went on bumps or uneven road surfaces. The booking said pick-up in terminal but it was a building outside the arrival terminal and you have to walk with your luggages to it. On departure, you have to drop it off at the same place and walk back to the arrival terminal and go thru to departure. No issue if you have only one bag. I have no complaints against the staff, both of them were very nice and accommodating. Here's hoping that the company will update their vehicles.

It was easy to make a booking and compare prices with other rental companies. Will use the website again

Very decent service and the car was clean inside and out. Service was pretty quick and very pleasant.

Very easy to compare rentals from different companies and information was clear. Ability to choose different protection plans is excellent.

Efficient

Good

Like: Nice staff, fast pickup and drop off. Proton is very cheap car, but it's ok if you just need to drive around for a few days.
Dislike: It was "2" in the pickup point address that confused me. Actually it's in Terminal 1, not 2 as I expecteed.