Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Antec BP500U Power Supply Unit

The first Antec Power Supply BP500U was defective and would not start up Windows. I emailed them right away and in 2 days I received another one. This one worked. Geovanne's Attic receives a 100% and AAA's in my book. They can't help it when products don't meet up to specs or are damaged, but, they do everything in their power to make it right.THANK YOU GEOVANNE'S ATTIC.