We've had ours, coming up to, two years now, and there has only been one time when it did not get us home - and, even then, it would have got us home, assuming we had enough fuel to keep pouring into the leaking injector pump, and enough courage to skid around on that much bio falling out the bottom!
(we were about 200 miles away - had we have been around the corner, id just have driven home)
Things do break on it all the time though... But then it is 18 yrs old now, and we do a fair few miles in it.