I has a Reward Zone certificate and decided to buy two of these, as I recently bought a LaCrosse Tech Weather Station/Clock as well. The construction is better than the cheap office clocks you normally see in businesses. True to form, each clock set itself by the next morning! Since I only live about 40 miles away from the NIST location, I will never have to take these clocks off the wall except to change batteries. Great clock for a very reasonable price--Thanks, Best Buy!