I like it. Not as much for the grain but as a starting point for color grading. I really like the look some of the film stocks give. You're right though, the grain still doesn't show up well on web compressed video.
Heres a couple examples:
I think this one I used the Ilford Delta setting: https://vimeo.com/63081914
This is one of the Fuji stocks: https://vimeo.com/62247924
Both were the 35mm grain with the slider turned down to about 25%