Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Couldn't get one that worked!

I received this CD player in February. It quit working 2 weeks later. I sent it back for repair to efactoryoutlet.us, spending $4.00 for shipping. I received the same unit back and it worked for 2 weeks and quit! I sent it back (another $4) and requested a replacement rather than a repair. I received a new? unit (it had a different serial number) and it wouldn't work right out of the box! I shared my troubles with Amazon and they credited back full price for the defective unit and gave me a promotional credit to help make up the additional $8 shipping costs! efactory.us wanted the defective unit back, but was unwilling to pony up the shipping!I am pleased with Amazon, but forget efo and Jensen! During this frustrating process, I went and bought a GPX portable CD player at a local Circuit City for $13 and I am very happy with that one and happy with Amazon for responding so generously to my difficulties!