It's the preferred soft-court surface in the U.S. Synthetics similar to those used on red courts are also in use.
Balls bounce high, but slower than on hard courts.
This favors more mobile players who can move well at the baseline and maintain consistent strokes throughout longer points. Basically the same, but slightly quicker due to its dust-like texture which causes faster slides. The fast-dry material prevents the texture from getting muddy, and even slower, in wet or humid conditions. Sampras' biggest weapons have always been his serve and his knack for winning points with one big shot. When he falls behind on faster courts, he has always been able to hammer out a few aces to avoid a break or hit quick winners to break back.