I don't disagree but the great thing about Vienna is that, while Schlosspark Schönbrunn is amazing and puts most other city parks into shame, it's not at the top of nice parks in Vienna - there's also Prater, Wienerberg and especially Donauinsel.

Yes, Schlosspark is quite nice for jogging or walking. There are also two sandboxes for kids. However, you're not supposed to walk on most of the grass, so it's indeed mostly a park to look at, but not a park to be used.