Bought a refurbished Dell Laptop. Received laptop within 3 days. Got the laptop out and began setting it up. Wifi would not connect from my living room. Walked into bedroom where router is located. Wifi worked. Took laptop to office where I was positive there was a strong Wifi Network. Didn't work at all. Connected to Ethernet, worked. Brought it back home, still only working when close to router. Several tech friends told me might be a bad network card. Hadn't had the laptop about 7 days. Was able to return the laptop with no questions asked and was made very simple for me. Cost me $12 for a UPS box and bubble wrap because I had thrown the one shipped to me away. Received my replacement yesterday, 2 days after sending it back. Great service.