The cleaning kit contains a simple brush that works well to remove dust from screen corners, a microfiber cloth, and a cleaning solution. The cleaning solution is composed of distilled water and a detergent, so it won't leave a residue on your screen if used properly. The kit works well and is a great value.
PROS: Price. Effectiveness.
CONS: The micro-fiber cloth is a bit small, at 8 inches by 8 inches, so it'll take a little longer to clean big screens.