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.
Astia is my first choice once I won't have Kodachromes anymore. If that forthcoming discontinuance in 35mm is true, let's try with Sensia (RA), which is the consumer version of Astia (RAP).
The Sensia datasheet is outdated, as it refers to Sensia II, the amateur version of the original Astia, both containing the "old" color couplers.
The current Sensia (3rd generation with new color couplers) was introduced in 2003, but it is slightly more saturated than its pro counterpart Astia 100F, and slightly less than Velvia 100F.
If processed at too low alkalinity, all these three films get a green tint.