Double Hung Gorell with half screen

The windows I ordered yesterday are Gorell 5305. They come with a half screen that can be raised to cover the upper window or lowered to cover the lower window.

Can you think of any foreseeable problems that might cause me to reconsider the screen to go to a full screen (if it is available). I do not know the price difference. Since I I have never had double hung windows, I do not know what would be good or not with them.

Half screens seem to work very well for most folks. Unless you plan to ventilate through both sections of the window (i.e. pull down the upper sash and lift up the lower sash) the full screen is unnecessary.