Fit and finish on the spoiler are great. Could not find any flaws in the carbon fiber. It was shipped in a very secure cardboard box that was reinforced on the sides so it would not bend. Once I received my shipping email, it took three days to arrive in Indiana. There are no instructions for installation so make sure you watch some YouTube videos before trying to install. The only area of concern on the spoiler is the 3M tape that was preinstalled. There is just one strip of tape on the bottom of the spoiler. I added the second strip of 3M tape to have a more secure installation. The spoiler itself fit the trunk lid perfectly. There were no gaps and it looks great. Using an eraser wheel on my cordless drill seemed to work the best to remove the factory adhesive left on the trunk lid. I also used 50 pound test fishing line to remove the spoiler. It had no problem cutting through the factory adhesive. The whole process took me approximately 45 minutes to finish. It is well worth buying this quality spoiler, knowing it fits perfectly.