This roof spoiler was designed perfectly for the Genesis Sedan due to its width, size, and overall look that matches the contours of the body of the car. It seems to be made out of plastic which was a good idea for longevity of the spoiler, but overall was one of the main reasons why it was difficult at first to apply onto the rear window. There are three small clips at the top of the spoiler towards the side that faces the roof of the car meant to clip onto the top edge of the rear window. There is also a ton of 3m adhesive ready to be used on the bottom side to stick onto the window, so there is no need to apply more when putting the spoiler. The installation of the spoiler was slightly more difficult than other roof spoilers due to three main factors:
1. Instructions were written in some form of an Asian language. There were pictures used to help show how to install it, but having instructions in English would've helped greatly.
2. Made of out plastic. This limits how much bending you could possibly have when installing it to try and contour it to the window.
3. The clips at the top. Although this was a neat feature to help with the spoiler staying on the window and a guide to get the spoiler placed in the perfect position, it really was difficult to get the clips to snap onto the window. If you don't get these clips in, the spoiler will not make contact with the window causing gaps between the spoiler and the window. The spoiler also came with slight scratches on it but that might of been due to the shipping process.

Overall, it was designed aesthetically perfect for the Genesis Sedan. If the installation process was easier and the clips were not involved, this would of received a 5-Star rating.

Pros:
Looks great on the car
Price was reasonable
Packaging of it was good enough

Cons:
Installation was difficult
Made out of hard plastic
Slight scratches upon arrival

Great product! Greatly improves the appearance of my 2015 Genesis Sedan.