This is Agassi's and Seles' favorite court position. No Person's Land is the area of the court that most, if not all, of us hate. In this zone, we are too close to the net to hit groundstrokes because the ball usually bounces at our feet. Volleys are equally difficult because we must get very low to strike the ball and usually we cannot volley deep into the opponent's court from this position. Consequently, the half volley is our only option.
Half volleys require timing and finesse.
Even those of us who strike the half volley must admit that it usually is a defensive shot. Thus, whenever possible, avoid getting caught in No Person's Land. The best way to avoid this problem zone is to drive to the net whenever you move inside the baseline. In the modern game, big groundstroke players like Seles and Agassi will often charge the net and hit the swing volley. Whatever you do, never move backwards unless there is no other choice.