I was anxious to see what real memory usage would look like on my low end netbook. It was better than Windows 7! Less than 500M. One problem I had was the native resolution of my netbook is1024X600 and the will not load Windows Store applications at that resolution. I found a registry setting however to get higher non-native resolutions: "Display1_DownScalingSupported". As with any registry change make sure you back up the registry first before making changes. I searched the registry and changed the value from 0 to 1 where I found it and restarted. Now I can get 1024X768 and 1152X864.
Let me know if this helped you!