I strongly considered those on my new build but went with the standard 21” RS Spyders in satin black. Just felt they gave the car a more planted looking stance.

 

I saw a GTS the other day driving around and I agree that they help with the stance. Very “chunky”. I personally don’t like black wheels and wish Porsche would offer them in silver. BMW recently did with the mesh wheels on the m3 and they are amazing. I never was able to get on the black wheel train. The rs spyders are an amazing wheel though and very “GTS”