The demo car at Brands Hatch Morgans was fine when I drove it for about 80 miles in the dry. I must admit i did not encounter any issues with the KH auto car either, but I was driving on a very wet day and I probably wasn't using the brakes as much.
Both cars had a longer pedal travel than I would have preferred, but I felt each of them was adequately braked.
Or perhaps I drive without using the brakes as much as others all the time?