Instruct: Classify Amazon reviews into positive or negative sentiment
Query: cracked

Gave this as a gift for Christmas and recipient just had it professionally installed in April.....very defective...large crack. He had to purchase a decent one from a home store. Installer said he had seen this same kind from Cosco that was cracked also. Very dissapointed in purchase and as a loyal Amazon customer will be very skeptical about future purcases. Expensive product so my advise is not to buy it.