i bought a Scenic (00) 3 years ago and have added about 40k miles with no major problems. Simply wear and tear (brake pads, tyres etc).
I love it due to the space it gives and safety features. I saw a top gear episode where they crash tested a 3,4 and 5 star car. The difference was bigger than I thought! I love the individual seats and the big boot. The raised driving position and lifting kids in and out is easier because of the height of the car.
I have a 1.6 petrol engine which is rubbish. But I wouldn't be adverse to getting another one though I would go for a bigger, diesel engine.