This place is actually the best place in the world to bring your grandparents. Everything about it screams senior citizen, except of course for the steep flight of stairs up to the second floor. If your grandma can walk up stairs, and has a lot of money, this is the place for her.
The thing is, I don't really mean this as a negative thing. There is a need for all kinds of restaurants, and this is one that caters to a much older crowd. That being said, the food is good, and the service is great too - but I wouldn't bring a hot date here - it's not really the place for a "night out on the town".
I had the soup of the day which was a gazpacho (delicious) and the lobster omelet, which was also good. My main came with steamed vegetables, and everything was a bit on the buttery side (again, so something an older person would like).
The simple decor of Jacques' is a little out of date, and especially considering almost everyone buy myself was 65+, sealed this as an elderly-friendly restaurant. BUT if you're looking for a place to take an older crowd, this is it!