DH & I tried Jiko and Artist Point for the first time last October, and we loved them both!!! They both are very nice for dinner, and yet child friendly with coloring pages for the kids. (We also had our DD with us for dinner at Jiko, but for Artist Point, she chose to go to the Cubs Den!)
We're trying California Grill for the first time in Dec - don't know how child friendly it is though.
Good luck!!!