This car has been excellent to us.
I bought the car in 2006 and it was very comfortable, general running costs were quite reasonable as well.
The thing that I can comment on is that it seems to retain a lot of static electricity, and I get zapped every time I get out of the car.
In 2007, whilst on holiday, I was driving the Nissan Tiida on the highway speed was around 90 - 100km/h, a drunk driving crossed into my side of the road and hit my car pretty much head on, me and the Tiida was pushed onto the side of the road and rolled over, miraculously I suffered no injury whatsoever, whilst my wife suffered minor injuries.
It was certainly a major accident, police and ambo personnel was surprised to see me walking around, I have no doubt that the car + its safety systems saved us from serious injuries. As expected the car was a total writeoff, but it has certainly protected us when it needed to.
After the accident, I bought a bigger car, having said that however, if I did most of my driving in built up areas in the city, I would no doubt be buying another Tiida.