I have had my Dior Lip Serum in 650 for quite a while. I chose a serum over a lipstick as its more nourishing. It really moisturises my lips and has a soft balmy texture. The packaging is slim and sleek and the lip balm texture makes it easy to apply without a mirror.
The colour 650 is meant to be a peachy colour but personally I think it is more of a coral medium pink. It is quite a warm colour that I think will be great for Autumn.
The main downside to the Dior Lip Serum is that it doesn't stay on very long at all. But I still love it!