Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Major Disappointment

What a piece of junk. I bought this item to replace a 30 year old inexpensive Oster egg cooker that now I wish I hadn't thrown away. I don't know how this can be considered automatic when it doesn't have an auto shut off. If you don't happen to be available when your hard boiled eggs are done they continue to cook and scorch and are ruined. The end time alarm is very annoying as well. The instructions also say you need to pierce the eggs to keep the shells from exploding, which causes the eggs to hard boil poorly.. (In using my old Oster over 30 years I never had a hard boiled egg explode!). Don't waste your money on this product.