W220 Questions about Model Care and Colors – PLEASE ASSISTANCE

Hello guys, My father is currently driving a W220 S 500 long from 02/2000 with 68,000 kilometers. The vehicle has caused so many problems in the last 15,000 kilometers that my father now wants a facelift, in the hope that it will get better. What has everything changed with the facelift and is it much better than the one before Facelift? Are the errors mostly fixed? Did that hear that Facelift got a better suspension? Now a few questions about the colors. new that is in view, is emerald black metallic with leather anthracite. My father is currently driving obsidan black metallic with black leather. What looks more beautiful from obsidan black or emerald black? What’s the difference? Do you have the feeling that there is almost only obsidan black and hardly emerald black where is that? Does emerald black have a blue stitch? Does some pictures come across as such. Is the difference between black and anthracite leather very large and striking? The seller mei nd it looks really black for him. Do you think the combination is good between emerald black and anthracite leather? The car stands 300 kilometers away from us and therefore we do not want to experience evil surprises. Unfortunately I find hardly any pictures of these colors. Do you have any? Thank you for your help…