I was wary of buying a refurbished laptop and initially my concerns were right. The one I received had a catastrophic failure with 30 minutes of turning it on. Contacted the seller and they were very helpful. It ended up that the things they suggested did not work. With absolutely no hassle they replaced it. The replacement works just like it should. Even though it is a refurbished unit it looks like it is brand new.I would have given it 5 stars if the 1st one had worked. If you are buying from CNB Computers you can be sure that they will address any problems promptly.