Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Very, very loud
Review: I bought this pump recently and was shocked about how loud it was. Just an ear piercing screeching noise that was horrendous. Took me about 15 minutes to inflate a queen size air mattress, and it didn't even inflate completely. I recommend keeping the return information until you actually charge and use it and not to pay attention to the flier in the box that says to call Coleman if you have any problems.
