PSE for sure. As for color, there is no right or wrong answer, it's a very personnal choice. Now I feel some responsability in your color change! LOL! 😅
I needed a change from the classic colors. Gentian is a chameleon colour with tons of character. It's part of the charm and why I love it. I've written on this Forum that GB seems to have 50 shades of blue, going from a royal blue to a darker blue and even looks purply in some sorts of lights (that scares a lot of people)! Well, almost all dark blues will show some amount of purple under certain lighting conditions, especially artificial light. I don't mind the purple tones and they aren't that noticeable in regular, daily life. The gentian is also less common. I went even further by picking the light grey interior. LOL!
You will find tons of pics of Gentian on RL and the web (I have my unveiling pics on another thread "Eagle has landed"). Have fun and maybe ask your SA to give you a shout when he has one at the dealership so you can see it "in person".
But we all agree that the 911 looks great in any color

(but the jury is still out on Racing Yellow

).