Definately get one, it completes the front of the car
You're average speed bump or table will not make contact with it unless you arrive at speed or are braking too hard on the approach.
Multi storey car parks are a no no though as most have ramps that are too steep
I ripped my original STi one off on a one foot high grass bank just before I sold it and it just didn't look anywhere near the same car, had managed to protect it for 2.5 years before that
The stupid thing was, I was taking pictures of the car to sell it when I did it........long story