Hi - i purchased it second hand - its about 2 years old.
I have been using in the garage for about 5 months now with no issues.
My wife was simply walking at 6kph on a slight incline when it just shut down - she heard a bang but I think that was just the sound of the consumer unit trip going.
Now it just blows the trip when the power is turned on - we never get as far as trying to start the motor.
Hope that helps,