Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: philips noise cancelling headphones
Review: I'm very disappointed with the performance of this product. I could have had a pair of headphones for a lot less money than I paid for something I thought was going to cancel noise. At the very best, it minimizes noise but I am still able to hear all that is going on around me, voices, equipment running, walking on floors, doors opening and closing, phones ringing, etc. This product is not effective in its intended purpose which is to "cancel noise". I would not buy another one of these or recommend them to any one.
