I have a StoneGard clear bra (3M) on a Roadster. The car has 16000 km without a ding or scratch to the front end, and I have never bent over to take the damn thing off in order to wash my car. I am pleased with both the endurance and appearance of the product. I had a black Speedster with a black material bra previously. In terms of both appearance and convenience, I like the new combination much better. StoneGard has a 356 pattern, so there is little or no cutting, but how skilled you are at putting it on the car has a lot to do with how it looks. Might be better to have it put on BEFORE the car is shipped if possible, since the front bumper has to come off. Getting someone skilled to apply the material is definitely worth it, since the surface curves in several directions at once. The surface must be COMPLETELY CLEAN, and you have to keep the surface and the material wet and soapy throughout, so that the 3M material can slide and stretch into position. There is a "seam" across the top, but nothing like the seam of a material bra. If it is done right, the seam cannot be distinguished from the paint from a distance of five or six feet. It takes on wax very well, and the color continues to match perfectly. It also doesn't pay to put the money in unless the car is new or the nose is newly painted. It won't repair dings and if you have dirt or imperfections underneath they will show through.
Price is a concern, but I had to have the front end of my black Speedster re-shot, which was done for $500 about a year after I bought it new. At that rate, the cost of the clear bra is cheaper by year two.