I must have read 50 reviews so far but none as helped me decide if I would be happy with one. I currently own a 2011 Air 11 inch , I loved it but it begins to show it's age and I would like to replace it. I travel -not Starbucks- i mean planes and hotels. Most of what I do is light but I do have to use XCode on occasion. I play Civ 5 on it and it handles it adequately, even if it gets really hot. The battery also gets drained really fast but the bottom line is my Air is adequate even if it is a bit of an underperformer. Could the Macbook be able to repace my Air ?