Hi Sprocket,
Yes I have one and had one for some time, yes the are a heavy bit of kit,but they are a excellent bit of kit. I used to use it to put a Al-ko secure wheel lock on prior to getting a motor mover and to level the van when it was difficult to move the van with the car in tight spots and due to its bracket system it very easy to use.
I,ve had a Al-ko jack in the past and although adaquate not any where as good as the Kojack.I traded that to some one else and bought the Kojack
I must admit prices have shot up since I bought mine and noticed dealers pushing prices of