Astia 100f is my fave colour film of all time.
In my experience, the grain cannot be beaten, I love the colour, it just suits everything so well, accurate colour, intense sunset is intense sunset.. I actually love it for landscapes even.
Fantastic for skin as well.
If youre scanning and it looks too flat merely use an unsharp mask with a radius of 90 to 250 pixels with an amount % of 10-40% depending on radius.