Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: centrifuge base does not work
Review: The base requires D batteries or a 6v adapter. it did not work when we used the batteries. It does not come with the adapter so we could not even test it to see if it what just the battery chamber that was malfunctioning. unfortunately we will have to take it back. It really doesn't deserve a 1 star as it does not work! Don't waste your money.
