I do agree that the Sierra blue is a nice color, I got the Pro Max in Sierra Blue, and it’s kinda cool how it reflects into different shades depending on the lightning condition, it varies between metallic grey, grey, light grey, light blue, metallic light blue, and the steel bands on the side looks really fresh and premium. A great choice and it suits perfect..
My biggest concern is that I might have this phone for 2-3 years and I wonder if one will eventually get tired of the color as time moves on.. time will tell.. but in some kind of way I think we‘ll manage.