Unless things have changed here is what will most likely happen;
Scratches are a non-issue
The double stitching looks good and is very tough
The leather smells good and looks rich
Full leather is highly valued
The dash leather has a reputation for cracking and pulling near vents. But it adds character.
My full leather interior in my 928 still looks, smells and feels awesome. You should treat the dash regularly and keep it out of the sun as much as possible.
Tom