Not reliable
I bought three ramps off this company replacing my old ramps over a three year period, soon after the third ramp was fitted, they started to fail, (just out of warranty) one locked up in with a vehicle stuck at the top, then a ram seal started to leak on the other, between them three operating switches have been replaced, then a drive link between the motor and the pump wore the teeth off , minor part but they no longer supply it, so over £600 for a complete motor rather than a £10 part, it`s not been fitted four years yet !!!