Recently video analysis became very popular among coaches and players. Although in the past complex video analysis was mainly used by pros, now it is available for amateurs as well. Naked eye in general misses most of the tiny parts in technique. Therefore, it is crucial to utilize video analysis when trying to improve or fix any tennis shot (power, accuracy, topspin, depth).
Sometimes is it hard for player to realize and see what their flaws are without actually seeing it on video. It is easier to visualize and fix any flaws in the stroke with video analysis.
Your strokes will be compared with professional tennis players using side by side analysis.