Should I buy, Intel Celeron N2840 2.16Ghz laptop in 2015 for my wife? Will be used mainly for Microsoft Office W/P/E, google chrome, some light photo editing and watch 720/1080p mkv. Her previous laptop with 2nd gen i3 + intel HD are having problem with heatsink fan, hardisk RW started to degrade and battery broke. The price to repair/buy those component is almost the same as buying a new Lenovo 100-15IBY 80MJ00**** Celeron 15.6". So for her casual office usage, would the Celeron N2840 (which is Atom-based SOC) be sufficient? Thanks in advance for your opinions.