For 1.8 Civic, starting since 2006 from 8th Gen Civic aka Reborn, the mighty 140hp engines despite doing some crazy stuff and careless driving there are extremely few occasions when I felt the need for VSA to be there. In extreme cases very very rarely or sometimes on old roads which have gotten slippery to cause loss of traction. Taking round abouts and curves at extreme sometimes makes the need for VSA being needed or there.
Moreover if the tyres have been upgraded to some good imported rubber that chance gets even rare.
But the real fun of switching off VSA is worthy on rear wheel drive...